Thursday
April 24, 2014

Search: magnetic field has magnitude

Number of results: 10,148

Physics
A coil is made up of 19 square loops with the sides equal to 5.3 cm. The coil is placed in a uniform 350 mT magnetic field with the axis of the coil parallel to the magnetic field. If the field reverses direction in 0.17 seconds, what is in volts, the average emf induced in ...
Friday, March 11, 2011 at 10:00pm by Justin

Electric currents and magnetic fields
Within a material, what results in the conversion of an electron's energy to thermal energy and electromagnetical energy? The electron moving makes an magnetic field, if it changes, there will be an electric field with the magnetic field. Thermal energy is the result of ...
Thursday, December 14, 2006 at 10:23pm by Kalee

physics
At New York City, the earth's magnetic field has a vertical component of 5.2 10-5 T that points downward (perpendicular to the ground) and a horizontal component of 1.8 x 10^-5 T that points toward geographic north (parallel to the ground). What is the magnitude and direction ...
Tuesday, February 8, 2011 at 7:23pm by aml

physics
The picture tube in an old black-and-white television uses magnetic deflection coils rather than electric deflection plates. Suppose an electron beam is accelerated through a 53.8-kV potential difference and then through a region of uniform magnetic field 1.00 cm wide. The ...
Monday, April 4, 2011 at 9:52pm by joe

College Physics
A proton moves with a velocity of vector v = (6ihat - 1jhat + khat) m/s in a region in which the magnetic field is vector B = (ihat + 2jhat - 3khat) T. What is the magnitude of the magnetic force this charge experiences? answer in Newtons. I tried F=qvb but the vectors are ...
Saturday, March 10, 2012 at 1:48am by Anand

PHYSICS
A proton moves perpendicular to a uniform magnetic field B at 1.20 107 m/s and experiences an acceleration of 2.00 1013 m/s2 in the +x direction when its velocity is in the +z direction. Determine the magnitude and direction of the field.
Tuesday, October 29, 2013 at 1:02am by Kathy

College Physics Homework. Please help!
A metal bar with a length of 0.30 m and mass of 0.5 kg is free to slide (no friction) on a set of vertical rails. The rails and bar together have a resistance of 500 ohms. The rails lie in a horizontal magnetic field with a strength of 0.04 T. The mass falls under the combined...
Monday, May 7, 2012 at 7:10pm by Rich

science
a region of magnetic force is known as a _______________ magnetic field. You could also be thinking of magnetic pole.
Wednesday, January 17, 2007 at 9:30pm by shaleem

College Physics
A proton moves perpendicular to a uniform magnetic field B at 1.20 107 m/s and experiences an acceleration of 2.00 1013 m/s2 in the +x direction when its velocity is in the +z direction. Determine the magnitude and direction of the field.
Friday, October 25, 2013 at 7:52pm by Suhani

Physics
In designing a velocity selector that uses uniform perpendicular electric and magnetic fields, you want to select positive ions of charge +5e that are traveling perpendicular to the fields at 8.75 km/s. The magnetic field availabe to you has a magnitude of 0.550 T. (a) What ...
Monday, February 18, 2008 at 9:34pm by J

Physics
An electron moves with speed 2.46 x 105 m/s in a 1.39-T uniform magnetic field. At one instant, the electron is moving due west and experiences an upward magnetic force of 2.81 x 10−14 N. Caculate the magnetic field (angle). What is the direction of the magnetic field? ...
Thursday, March 1, 2012 at 8:43pm by Ashley

physics
What is the direction of the force acting on a current-carrying conductor lying in a magnetic field? A. It is in a direction opposite to the direction of the magnetic field. B. It is at angles to the direction of the current. C. It is at right angles to both the direction of ...
Sunday, May 24, 2009 at 6:25pm by sally

Physics
Two flat surfaces are exposed to a uniform, horizontal magnetic field of magnitude 0.50 T. When viewed edge-on, the first surface is tilted at an angle of 14 from the horizontal, and a net magnetic flux of 8.70x10^-3 Wb passes through it. The same net magnetic flux passes ...
Sunday, October 20, 2013 at 10:15pm by Anonymous

Physics repost please check
Posted by Mary on Monday, November 5, 2007 at 8:19pm. A charged particle, passing through a certain region of space, has a velocity whose magnitude and direction remain constant. (a) If it is known that the external magnetic field is zero everywhere in this region, can you ...
Tuesday, November 6, 2007 at 11:48am by Mary

Physics
An electron beam of a TV picture tube is accelerated through a potential difference of 2.00 kV. It then passes into a magnetic field perpendicular to its path, where it moves in a circular diameter of .360 m. What is the magnitude of the field? I am lost. I keep getting the ...
Monday, February 25, 2008 at 8:42pm by J

College Physics
In an electric field, the lines on the left have twice the separation as those on the right. (a) If the magnitude of the field at A (particle in the field with lesser separated lines) is 58 N/C, what is the magnitude of the force on a proton at A? (b) What is the magnitude of ...
Sunday, July 8, 2012 at 9:27pm by Stephanie22-2

Intro Physics
HI! Can you guide to which equation to use for this problem: An electron with the speed of 2 x 10^7 m/s enters a magnetic field with a velocity vector 25^0 away from the magnetic field direction. If it experiences an acceleration of 1.5 x 10^16 m/s^2, determine (absolute value...
Tuesday, March 2, 2010 at 11:17pm by John

Physics
3. A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +x-direction (in vacuum) across a 1 mm gap, passes through a small hole in a +0 V electrode that is parallel to the first one, and enters a region of magnetic field...
Tuesday, November 19, 2013 at 11:42am by James

magnetism
A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +x-direction (in vacuum) across a 1 mm gap, passes through a small hole in a +0 V electrode that is parallel to the first one, and enters a region of magnetic field. ...
Wednesday, November 20, 2013 at 2:22pm by Anton (Elena Pl: check)

magnetism help
A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +x-direction (in vacuum) across a 1 mm gap, passes through a small hole in a +0 V electrode that is parallel to the first one, and enters a region of magnetic field. ...
Friday, November 22, 2013 at 10:42am by Carl

Physics
You have arranged that the magnetic field in a particular region of space is due North with a value of 0.009 T. An electron enters the field traveling to the west with a speed of 0.09 of the speed of light. As a result, the electron experiences a magnetic force, which is ...
Monday, April 19, 2010 at 12:24am by Steve

physics
A current I=2 Amperes flows in a circular single loop coil of radius R=10 cm. (a) Evaluate the magnitude of the magnetic field (in Tesla) at a point P on the axis of the coil, and a distance z =5 cm away from the plane of the coil itself. Now consider two N-turn circular coils...
Sunday, April 7, 2013 at 1:39pm by abdul rahman

PHYSICS
The magnetic field of the Earth at a certain location is directed vertically downward and has a magnitude of 54.0 T. A proton is moving horizontally towards the west in this field with a speed of 6.00 ✕ 106 m/s. What is the radius of the circular arc followed by this ...
Friday, November 1, 2013 at 12:16am by viper

PHYSICS
The magnetic field of the Earth at a certain location is directed vertically downward and has a magnitude of 54.0 T. A proton is moving horizontally towards the west in this field with a speed of 6.00 ✕ 106 m/s What is the radius of the circular arc followed by this ...
Saturday, November 2, 2013 at 4:51pm by bad at physics

Physics - Electromagnetism
A square loop (length along one side = 20 cm) rotates in a constant magnetic field which has a magnitude of 2.0 T. At an instant when the angle between the field and the normal to the plane of the loop is equal to 20 and increasing at the rate of 10/s, what is ...
Sunday, August 12, 2012 at 11:52pm by Robert

Physics
A circular loop of wire with radius 0.0450 m and resistance 0.154 R is in a region of spatially uniform magnetic. The magnetic field is directed out of the plane. The magnetic field has an initial value of 7.89 T and is decreasing at a rate of -0.630 T/s. What is the rate at ...
Wednesday, February 29, 2012 at 7:33pm by Kyle

Physics
A rapidly changing magnetic field in any region of space induces a rapidly changing A.Magnetic field or B.Electric field? which in turn induces a rapidly changing A.Magnetic field B.Electric field?
Saturday, December 8, 2012 at 3:12pm by Katie

Physics (please check)
Please let me know if my answers are not correct/not thorough enough. 1) Q:What happens when the number of loops in the armature of a generator is increased? 1) A:More loops= more voltage _________________________ 2) Q: Why does a piece of iron behave like a temporary magnet ...
Wednesday, June 4, 2008 at 2:27pm by BAdams

PHYSICS
A proton moves perpendicular to a uniform magnetic field B at 1.20 107 m/s and experiences an acceleration of 2.00 1013 m/s2 in the +x direction when its velocity is in the +z direction. Determine the magnitude and direction of the field. T in the direction
Thursday, October 24, 2013 at 12:06am by smita

PHYSICS
A proton moves perpendicular to a uniform magnetic field B at 1.20 107 m/s and experiences an acceleration of 2.00 1013 m/s2 in the +x direction when its velocity is in the +z direction. Determine the magnitude and direction of the field. T in the direction
Saturday, October 26, 2013 at 6:20pm by smita

physics
A Bainbridge mass spectrometer is shown in the figure. A charged particle with mass m, charge |q|=3.2 10−19C and speed v=3 10@6 m/s enters from the bottom of the figure and traces out the trajectory shown in the fields shown. The only electric field E=11 103 V/m is in...
Friday, April 26, 2013 at 11:18am by sat

physics
A ^9 Be nucleus containing four protons and five neutrons has a mass of 1.5010−26 kg and is traveling vertically upward at 1.70 km/s. If this particle suddenly enters a horizontal magnetic field of 1.25 T pointing from west to east, find the direction of its ...
Wednesday, March 9, 2011 at 4:40pm by Becky

physics numerical
an electron moving with the speed of 1067 m/s is passed into a magnetic field of intensity 0.1T normally.what is the radius of the path of the electron inside the field? if the strength of the magnetic field is doubled, what is the new radius of the path? (e/m=108*10611 C/kg)
Thursday, October 20, 2011 at 4:50am by brock

physics-can anyone solve this please
3. A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +x-direction (in vacuum) across a 1 mm gap, passes through a small hole in a +0 V electrode that is parallel to the first one, and enters a region of magnetic field...
Saturday, November 23, 2013 at 11:33am by Carl

physics
A 35 turn coil of radius 4.9 cm rotates in a uniform magnetic field having a magnitude of 0.53 T. If the coil carries a current of 20 mA, find the magnitude of the maximum torque exerted on the coil.
Friday, October 22, 2010 at 3:56am by chuck

physics
1.A proton enters a 2.0 X 10^-2 T magnetic field with a speed of 5.8 X 10^4 m/s. What is the radius of the circular path it follows? formula?? 2.Electrons moving at 3.5 X 10^4 m/s pass through an electric field with an intensity of 5.6 X 10^3 N/C. How large a magnetic field ...
Wednesday, April 9, 2008 at 4:34pm by martin

urgent physics
A power line carries a current of 110 A at a location where the Earth's magnetic field has a magnitude of 0.37 Gauss (0.3710-4 T) and points due north, very nearly parallel to the ground. Find the direction and magnitude of the magnetic force exerted on a 270 m length of the ...
Friday, November 4, 2011 at 3:40pm by sonia

IUP
A Circular metal loop is 28.0 cm in diameter. how large a current must flow through this metal so that the magnetic field at its center is equal to the earths magnetic field of 5.00*10-5T?
Wednesday, February 29, 2012 at 7:25pm by jenna

physics
1.The earth is constantly bombarded by cosmic rays, which are charged particles from outer space. moving vertically Find the force on one such cosmic ray− a proton that is instantaneously downward at 5.04 107 m/s at a point outside the atmosphere over New York, where the...
Tuesday, February 23, 2010 at 7:23pm by Sandhya

Physics..PLZ HELP!
The magnitude of the magnetic field 8.0 cm from a straight wire carrying a current of 6.0 A is A) 3.0 ~ T. B) 1.5 ~ T. C) 1.5 ~ T. D) 3.0 ~ T. E) 3.0 ~ T.
Tuesday, March 5, 2013 at 7:39pm by April

physics
Particle 1 and particle 2 have masses of m1 = 1.510-8 kg and m2 = 6.210-8 kg, but they carry the same charge q. The two particles accelerate from rest through the same electric potential difference V and enter the same magnetic field, which has a magnitude B. The particles ...
Wednesday, December 5, 2012 at 4:35pm by Anonymous

physics
A 36 cm long copper wire carries a current of 6.0 A and weighs 0.45 N. A certain magnetic field is strong enough to balance the force of gravity on the wire. What is the strength of the magnetic field?
Thursday, March 7, 2013 at 12:58pm by Anonymous

physics
A 36 cm long copper wire carries a current of 6.0 A and weighs 0.45 N. A certain magnetic field is strong enough to balance the force of gravity on the wire. What is the strength of the magnetic field?
Sunday, March 10, 2013 at 10:09am by Jeff

Magnetic effect
A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +x-direction (in vacuum) across a 1 mm gap, passes through a small hole in a +0 V electrode that is parallel to the first one, and enters a region of 1. magnetic field...
Monday, November 25, 2013 at 1:11am by Mac URGENT Please

Physics
An aluminum wire with mass/unit length of p = 5*10^-4 kg/m lies on the ground, running east-west. The wire feels the earth's magnetic field, which has magnitude B = 5*10^-5 T. Assume the wire is in Columbia, where the Earth's magnetic field runs due north, parallel to ground. ...
Wednesday, November 28, 2012 at 7:59pm by Huy Nguyen

science
How large a current would a very long, straight wire have to carry so that the magnetic field 2 cm from the wire is equal to 1 G (comparable to the earths northward-pointing magnetic field)?
Monday, April 18, 2011 at 2:59pm by kamal

physics
One component of a magnetic field has a magnitude of 0.046 T and points along the +x axis, while the other component has a magnitude of 0.066 T and points along the -y axis. A particle carrying a charge of +7.50*10^-5 C is moving along the +z axis at a speed of 3.20*10^3 m/s...
Monday, February 26, 2007 at 11:26am by Anna

PHYSICS
A straight 1.2 m length iron rod is moved at 10 m/s through the earth's magnetic field at a location where it has magnitude 1.0 105 T. What is the magnitude of the induced emf between one end of the wire and the other end? What formula do I use?
Sunday, May 27, 2012 at 4:10pm by Pat

PHYSICS
A five turn square loop (10 cm on an edge and resistance = 4.0 ohms) is placed in a magnetic field that makes an angle of 30 degrees with the plane of the loop. The magnitude of this field varies with the time according to B = 0.50 t^2, where t is measured in seconds and B in ...
Monday, November 11, 2013 at 8:49pm by HELP in physics!!!

physics 30
A current-carrying conductor that is 8.00x10^-2 m long is placed perpendicular to a magnetic field that has a strength of 6.00x10^-3 T. During a 3.00s time interval, 7.50x10^19 electrons pass a point in the conductor. The magnitude of the average magnetic force exerted on the ...
Wednesday, March 21, 2012 at 12:36am by sarah

Physics!!
An electromagnetic wave is produced by: A. an accelerating charged particle or changing magnetic fields B. an accelerating uncharged particle and changing magnetic fields C. a stationary charged particle and a magnetic field D. any moving particle and a magnetic field I think ...
Sunday, April 12, 2009 at 4:19pm by sophie

Physics
Can the magnitude of a magnetic field be negative? If we consider an electron in a mag field, using r=mv/qB, the negative charge on the electron gives a negative answer. Do I drop the minus sign?
Wednesday, February 25, 2009 at 3:43pm by charlie

Physics--Current question
Two long straight parallel wires separated by 1.00mm carrying currents in opposite directions with current equaling 10.0A each. Find the magnitude and direction of the magnetic field at Point A which = 0.50mm, Point B = 0.50mm, and Point C=0.50mm and write the directions of ...
Monday, July 27, 2009 at 11:29am by MP

AP Physics C
An electron follows a helical path in a uniform mag-netic field of magnitude 0.300 T. The pitch of the path is 6.00 um, and the magnitude of the magnetic force on the elec-tron is 2.00x10^-15 N. What is the electron's speed?
Monday, October 29, 2012 at 8:44pm by Michelle

physics
Two flat surfaces are exposed to a uniform, horizontal magnetic field of magnitude 0.50 T. When viewed edge-on, the first surface is tilted at an angle of 11° from the horizontal, and a net magnetic flux of 8.20 10-3 Wb passes through it. The same net magnetic flux passes ...
Thursday, February 9, 2012 at 5:05pm by Anonymous

Physics
A ^9 {\rm {\rm Be}} nucleus containing four protons and five neutrons has a mass of 1.5010−26 {\rm kg} and is traveling vertically upward at 1.45 {\rm km}/{\rm s}. If this particle suddenly enters a horizontal magnetic field of 1.15 {\rm T} pointing from west to east, ...
Tuesday, April 10, 2012 at 5:46pm by Kaitlin Carter

physics
A wire of length 0.655 m carries a current of 21.0 A. In the presence of a 0.470-T magnetic field, the wire experiences a force of 5.46 N. What is the angle (less than 90) between the wire and the magnetic field?
Tuesday, November 10, 2009 at 2:07am by Anonymous

Physics
In 1996, NASA performed an experiment called the Tethered Satellite experiment. In this experiment a 2.20 104-m length of wire was let out by the space shuttle Atlantis to generate a motional emf. The shuttle had an orbital speed of 7.50 103 m/s, and the magnitude of the earth...
Monday, April 8, 2013 at 3:20pm by Don

Physics
In 1996, NASA performed an experiment called the Tethered Satellite experiment. In this experiment a 2.20 104-m length of wire was let out by the space shuttle Atlantis to generate a motional emf. The shuttle had an orbital speed of 7.50 103 m/s, and the magnitude of the earth...
Tuesday, April 16, 2013 at 1:40pm by Anonymous

Physics
If the EMF produced in a wire is 0.88 volts and the wire moves perpendicular to a magnetic field of strength 0.075 newtons/ampmeter at a speed of 4.20 meters/second, what is the length of the wire in the magnetic field?
Thursday, May 16, 2013 at 1:22am by Jake

Physics- magnetism
The four wires in the figure are tilted at 20degrees with respect to the field direction. Each carries a 4.5 current and is 0.35m long. What is the magnitude and direction of the force on each wire? (the answer is in terms of B-magnetic field) Image: h t t p: //p osti mage. or...
Monday, March 7, 2011 at 10:28am by Bob

physics
A horizontal rod with a length of 0.250 is mounted on a balance and carries a current. At the location of the rod a uniform horizontal magnetic field has a magnitude of 6.7010−2 and direction perpendicular to the rod. The magnetic force on the rod is measured by the ...
Monday, October 31, 2011 at 10:21pm by Andrea

Physics
Question- A deflecting force is experienced by a charged particle entering a magnetic field. The deflecting force is always______ A. parallel to the magnetic field lines B. parallel to the motion of the charged particle C. perpendicular to both the motion of the charged ...
Thursday, April 19, 2012 at 11:36am by James Mesch

physics
A proton moves perpendicularly to a mag- netic field that has a magnitude of 3.0910^−2 T. The charge on a proton is 1.6010−19 C. What is the speed of the particle if the magnitude of the magnetic force on it is 3.50*10^−14N? Answer in units of m/s.
Tuesday, April 19, 2011 at 12:15am by maria

physics
A proton moves perpendicularly to a mag- netic field that has a magnitude of 3.0910^−2 T. The charge on a proton is 1.6010−19 C. What is the speed of the particle if the magnitude of the magnetic force on it is 3.50*10^−14N? Answer in units of m/s.
Tuesday, April 19, 2011 at 10:08pm by maria

physics
An electron enters a region where there is a magnetic field with a strength of 0.5 T which points out of the page (electron has an initial speed of 150 m/sec and is moving to the left). Describe motion of charge in an magnetic field (In particular, what is the shape of the ...
Monday, May 7, 2012 at 5:06pm by Tom

physics (non-calc)
A particle of charge 2.5x10(^-6)C is moving at 1000 m/sec in a direction 30 degrees North of east. At the location of the particle the magnetic field has size 0.2 T. The particle is experiencing an instantaneous magnetic force (due to this sheild) of 1.71x10(^-4) newtons ...
Tuesday, June 7, 2011 at 1:46pm by phil

Physics
A proton, moving in negative y-direction in a magnetic field , experiences a force of magnitude F, acting in the negative x direction. a) What is the direction of the magnetic field producing force? b) Does your answer change if the word proton is replaced by electron? I get a...
Tuesday, October 25, 2011 at 8:27pm by Jessica

physics
Two insulated wires, each 2.70 m long, are taped together to form a two-wire unit that is 2.70 m long. One wire carries a current of 7.00 A; the other carries a smaller current I in the opposite direction. The two wire unit is placed at an angle of 77.0 relative to a magnetic...
Wednesday, February 26, 2014 at 1:07am by Dee

Physics
In New Hampshire the average horizontal component of Earth's magnetic field in 1912 was 16 uT, and the average inclination or "dip" was 73 degrees. What was the corresponding mag-nitude of Earth's magnetic field?
Monday, November 12, 2012 at 8:43pm by Michelle

Physics
A circular plate of radius 0.5 m is placed perpendicular to the direction of the magnetic field of 0.5 Tesla. What is the change of flux in the plate if it rotates and its plane becomes parallel to the direction of the magnetic field?
Friday, May 17, 2013 at 2:08pm by jane

PHYSICS
A 14 cm diameter circular loop of wire is placed in a 0.58 T magnetic field. (a) When the plane of the loop is perpendicular to the field lines, what is the magnetic flux through the loop? (b) The plane of the loop is rotated until it makes a 36 angle with the field lines. ...
Saturday, April 3, 2010 at 9:01pm by JOSE

physics
Marks: 4 A circular plate of radius 0.5 m is placed perpendicular to the direction of the magnetic field of 0.5 Tesla. What is the change of flux in the plate if it rotates and its plane becomes parallel to the direction of the magnetic field?
Sunday, June 12, 2011 at 4:25pm by unknown

Physics
In a uniform magnetic field, can an Amperian loop ever have a non-zero value of its line integral with the magnetic field? a)yes b)No, it will always be zero c)depends on the orientation and shape of the loop.
Tuesday, December 3, 2013 at 10:59am by Djp

Physics grade 12
A horizontal beam of alpha particles are injected with a speed of 1.3x10^5 m/s into a region with a vertical magnetic field of magnitude 0.155T. A- How long does it take for an alpha particle to move half way through a complete circle? B- If the speed of the alpha particle is ...
Thursday, April 5, 2012 at 2:31pm by John

physics
A 160 MeV proton, moving in the x-direction, enters a region in which there is a magnetic field. The proton experiences an acceleration of 5.5 X 10^12 m/s^2 in the y-direction. What can you say about the magnetic field?
Saturday, February 27, 2010 at 8:00pm by Sandhya

Physics
Physics Question Please Help? A wire, 20.0 m long, moves at 4.0 m/s perpendicularly through a magnetic field. An EMF of 40V is induced in the wire. What is strength of the magnetic field?
Monday, February 28, 2011 at 12:11pm by Crystal

physics
A 2.0 m wire segment carrying a current of 0.60 A oriented parallel to a uniform magnetic field of 0.50 T experiences a force of what magnitude
Wednesday, November 24, 2010 at 12:21am by edward

Physics
A proton moves eastward in the plane of Earths magnetic equator so that its distance from the ground remains constant. What is the speed of the proton if Earths magnetic field points north and has a magnitude of 5.2 10−5 T? The acceleration of gravity is 9.81 m/s2 ...
Wednesday, March 6, 2013 at 5:00pm by alice

Physics Urgent
In a uniform magnetic field, can an Amperian loop ever have a non-zero value of its line integral with the magnetic field? a)yes b)No, it will always be zero c)depends on the orientation and shape of the loop.
Monday, December 2, 2013 at 6:35pm by Djp

Physics IMP
In a uniform magnetic field, can an Amperian loop ever have a non-zero value of its line integral with the magnetic field? a)yes b)No, it will always be zero c)depends on the orientation and shape of the loop.
Tuesday, December 3, 2013 at 11:24am by Djp

Physics
Why does a piece of iron behave like a temporary magnet when placed in a magnetic field? SOLUTION: Iron consists of many small magnetic domains which all line up and temporarily behave like an ordinary magnet when iron is placed in an external magnetic field. IS this right?
Wednesday, May 27, 2009 at 5:37pm by sally

Chemistry
Good morning, I am looking for help in figuring out how to solve this problem, knowing that the magnetic field was just calculated to be 9.39 tesla. Is there a specific formula and is there any information I'm missing to be able to solve this question? What is the resonant ...
Wednesday, April 16, 2014 at 10:13am by NP

Physics - please check over
A charged particle moves at a constant velocity in a straight line through a region in space... a) is the electric field zero in the region? Explain b) is the magnetic field zero i the region? Explain I think a is yes because a charged particle will always create an electric ...
Tuesday, April 28, 2009 at 9:03pm by Lana

Physics
A positively charged particle of mass 5.60 10-8 kg is traveling due east with a speed of 60 m/s and enters a 0.49-T uniform magnetic field. The particle moves through one-quarter of a circle in a time of 1.20 10-3 s, at which time it leaves the field heading due south. All ...
Monday, March 25, 2013 at 2:09pm by Anonymous

Physics
A positively charged particle of mass 5.60 10-8 kg is traveling due east with a speed of 60 m/s and enters a 0.49-T uniform magnetic field. The particle moves through one-quarter of a circle in a time of 1.20 10-3 s, at which time it leaves the field heading due south. All ...
Monday, March 25, 2013 at 2:09pm by Anonymous

physics
A positively charged particle of mass 5.20 10-8 kg is traveling due east with a speed of 30 m/s and enters a 0.37-T uniform magnetic field. The particle moves through one-quarter of a circle in a time of 4.20 10-3 s, at which time it leaves the field heading due south. All ...
Thursday, April 4, 2013 at 12:33pm by Anonymous

Physics
A positively charged particle of mass 5.60 10-8 kg is traveling due east with a speed of 60 m/s and enters a 0.49-T uniform magnetic field. The particle moves through one-quarter of a circle in a time of 1.20 10-3 s, at which time it leaves the field heading due south. All ...
Thursday, April 4, 2013 at 4:12pm by Don

physics
A 0.330 kg bar is placed on a pair of frictionless rails separated by a distance of 1.60 m and located on an inclined plane that makes an angle of 29.0 with respect to the ground. The total resistance of the circuit remains at a constant 1.8 Ω and a uniform magnetic ...
Monday, August 20, 2012 at 7:36pm by Jimmy

Physics
Transcranial magnetic stimulation (TMS) is a noninvasive technique used to stimulate regions of the human brain. A small coil is placed on the scalp, and a brief burst of current in the coil produces a rapidly changing magnetic field within the brain. The induced emf can be ...
Saturday, March 29, 2008 at 8:40pm by Chris Adison

physics
above the earth, a 500nT magnetic field captures particles coming from the sun. If a proton moving at 600km/s runs into this magnetic field, what is the radius of motion of the proton? and also how long does it take the proton to travel in one circle?
Thursday, March 12, 2009 at 7:57am by jeff

Physics
What is one way in which the magnetic field is similar to the electric field and one way in which the magnetic field is different from the electric field?
Wednesday, November 7, 2012 at 8:39pm by Tyler

physics please help
In a physics laboratory experiment, a coil with 170 turns enclosing an area of 10cm^2 is rotated from a position where its plane is perpendicular to the earth's magnetic field to one where its plane is parallel to the field. The rotation takes 5.010^2 s . The earth's magnetic...
Friday, November 2, 2012 at 8:17pm by henry

Magnets
A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +x-direction (in vacuum) across a 1 mm gap, passes through a small hole in a +0 V electrode that is parallel to the first one, and enters a region of magnetic field. ...
Saturday, November 23, 2013 at 2:08pm by Ed some one please help

Physics
What is the magnitude of the force per meter of length on a straight wire carrying an 8.50 -A current when perpendicular to a 0.55 -T uniform magnetic field?
Wednesday, April 6, 2011 at 8:06pm by Samantha

Physics
I don't know if my other post went through or not, so I'm reposting it here. The first question I didn't know the answer to and the second one was worded in a way that I couldn't understand. 1. With respect to an electric and a magnetic field, how does the direction of a ...
Saturday, March 29, 2008 at 6:54pm by Emily

physics
The drawing shows a type of flow meter that can be used to measure the speed of blood in situations when a blood vessel is sufficiently exposed (e.g., during surgery). Blood is conductive enough that it can be treated as a moving conductor. When it flows perpendicularly with ...
Thursday, November 4, 2010 at 1:35am by tee

physics
The drawing shows a type of flow meter that can be used to measure the speed of blood in situations when a blood vessel is sufficiently exposed (e.g., during surgery). Blood is conductive enough that it can be treated as a moving conductor. When it flows perpendicularly with ...
Thursday, November 4, 2010 at 1:35am by tee

physics 8b
A piece of wire with mass per unit length 88 g/m runs horizontally at right angles to a horizontal magnetic field. A 6.5A current in the wire results in its being suspended against gravity. What is the magnetic field strength? Express your answer using two significant figures...
Friday, September 16, 2011 at 4:30pm by help

Physics
What must the charge (sign and magnitude) of a particle of mass 1.48g be for it to remain stationary when placed in a downward-directed electric field of magnitude 670N/C ? What is the magnitude of an electric field in which the electric force on a proton is equal in magnitude...
Tuesday, September 3, 2013 at 7:17pm by Wayne

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