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May 28, 2015

Search: A magnetic field has a magnitude of 1.20 10-3 T, and an electric field has a magnitude of 5.50 103 N/C. Both fields point in the same direction

Number of results: 63,847

Physic please check
A constant magnetic field passes through a single rectangular loop whose dimensions are 0.35 m x 0.55 m. The magnetic field has a magnitude of 2.1 T and is inclined at an angle of 55 with respect to the normal to the plane of the loop. (a) If the magnetic field decreases to ...
November 5, 2007 by Mary

Physics 2
A 42 mT magnetic field points due west. If a proton of kinetic energy 9x10E-12 J enters this field in an upward direction, find the magnetic force acting on the proton in magnitude and direction.
July 28, 2014 by seanmarch58

Physics
A proton moving with a speed of 200 m/s enters perpendicular to the direction of the magnetic field and experiences a force of 2x10^-18N. What is the magnitude of the magnetic field? any help is reallya appreciated
January 27, 2013 by anonymous

Physics
A uniform electric field of magnitude 370 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.70 cm. (a) What is the work done by the field on the electron? J? (b) What is the change in potential energy associated ...
September 16, 2010 by Max

physics
the magnitude of earths magnetic field at the magnetic north pole is 61/1000000.(a) determine the magnitude of the dipole moment of the earth (b)suppose an additional field due to the current in wire around the equator is used to make the net field at the pole zero,what is the...
May 1, 2012 by musa

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.
October 29, 2013 by Kathy

Physics
An infinite straight wire carrying a current I=5 A flowing to the right is placed above a rectangular loop of wire with width w=11 cm and length L=27 cm, as shown in the figure below. The distance from the infinite wire to the closest side of the rectangle is h=1.7 cm. The ...
June 14, 2013 by Annoyingmous

Physics
An infinite straight wire carrying a current I=5 A flowing to the right is placed above a rectangular loop of wire with width w=11 cm and length L=27 cm, as shown in the figure below. The distance from the infinite wire to the closest side of the rectangle is h=1.7 cm. The ...
June 15, 2013 by Annoyingmous

Physics
An electron experiences a force of 12 mN in the positive x-direction in an electric field. What is the magnitude and direction of the electric field?
February 8, 2011 by Sam

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.
October 25, 2013 by Suhani

Physics
Please help me with these choose the best answers since I'm not sure of my answers. A current element produces a magnetic field in the region surrounding it. at any point in space, the magnetic field produced by this current element points in a direction that is a) radial from...
October 23, 2011 by Jessica

Physics
Please help me with these choose the best answers since I'm not sure of my answers. A current element produces a magnetic field in the region surrounding it. at any point in space, the magnetic field produced by this current element points in a direction that is a) radial from...
October 23, 2011 by Jessica

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 ...
March 29, 2008 by Emily

physics
A particle with a charge 7C and a mass of 20kg is traveling in a circular path around a fixed particle of charde -5C. The velocity is observed to be 3000m/sec. A 9C particle with the same velocity is instead in the presence of a uniform electric field of 250N/C as shown. What ...
December 20, 2010 by dipset

Physics
A small object of mass 3.50 g and charge -22 C "floats" in a uniform electric field. What is the magnitude and direction of the electric field?
February 6, 2010 by Jan

Physics
A small object of mass 3.00 g and charge -13 C "floats" in a uniform electric field. What is the magnitude and direction of the electric field?
October 4, 2010 by Nate

Physics
A small object of mass 2.60 g and charge -17 C "floats" in a uniform electric field. What is the magnitude and direction of the electric field?
February 17, 2013 by Phil

Physics
A proton is projected perpendicularly into a magnetic field that has a magnitude of 0.32 T. The field is then adjusted so that an electron will follow a circular path of the same radius when it is projected perpendicularly into the field with the same velocity that the proton ...
September 29, 2011 by Breanna

Physics
A small object, which has a charge q = 6.7 C and mass m = 9.60 10-5 kg, is placed in a constant electric field. Starting from rest, the object accelerates to a speed of 2.06 103 m/s in a time of 1.03 s. Determine the magnitude of the electric field. Answer in N/C
January 28, 2013 by Jasmine

physics
An electron is released from rest in a uniform electric field and accelerates to the north at a rate of 115 m/s2. What are the magnitude and direction of the electric field.
March 1, 2010 by electric field

physics
Two long, parallel conductors, separated by 14.0 cm, carry currents in the same direction. The first wire carries current I1 = 6.00 A, and the second carries I2 = 8.00 A Assume the conductors lie in the plane of the page. (a) What is the magnitude of the magnetic field created...
November 5, 2013 by taylor

Physic
An electron is released from rest in a uniform electric field and accelerates to the north at a rate of 115 m/s^2.Determine the magnitude and direction of electric field.
December 16, 2014 by Syam

physics
A uniform electric field is directed upward and has a magnitude of 5 N/C. What are the magnitude and direction of the force on a charge of -3 C placed in this field? F=Eq E=5 q=-3 5(-3)=-15N Downward Ok I have the downward correct the -15 is incorrect. Did I use the wrong ...
July 25, 2012 by kkpdiluvu

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 ...
November 6, 2007 by Mary

Physics
The electric field on the axis of a uniformly charged ring has magnitude 370kN/C at a point 6.2cm from the ring center. The magnitude 17cm from the center is 150kN/C ; in both cases the field points away from the ring.Find the ring's radius.
March 10, 2014 by Anonymous

Physics
A flat circular coil with 192 turns, a radius of 2.35 x 10-2 m, and a resistance of 0.359 is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of B/t = 0.696 T/s...
March 7, 2013 by Anonymous

jphysics
the chapter is on electric fields and forces and I cannot figure these 3 answers out: Matt forgot to put the fabric softener in the wash. As his socks tumbled in the dryer, they became charged. If a small piece of lint with a charge of +1.25 E -19 C is attracted to the socks ...
May 22, 2011 by Kelli Kenyon

Physics
A long, straight wire carrying a current of 317 A is placed in a uniform magnetic field that has a magnitude of 7.69 10-3 T. The wire is perpendicular to the field. Find a point in space where the net magnetic field is zero. Locate this point by specifying its perpendicular ...
February 25, 2013 by Anonymous

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 ...
May 24, 2009 by sally

Physics
A proton is released from rest in a uniform electric field. After the proton has traveled a distance of 10.0 cm, its speed is 1.4 x 106 m/s in the positive x direction. Find the magnitude and direction of the electric field.
July 17, 2011 by Chloe

Physics
An electron is projected with an initial speed of (1.6x10^6 m/s) into the uniform field between two parallel plates. Assume that the field between the plates is uniform and directed vertically downward, and that the field outside the plates is zero. The electron enters the ...
February 5, 2013 by Kevin

Physics
When a charged particle moves at an angle of 12 with respect to a magnetic field, it experiences a magnetic force of magnitude F. At what angle (less than 90) with respect to this field will this particle, moving at the same speed, experience a magnetic force of magnitude 1....
April 1, 2013 by Anonymous

Physics
When a charged particle moves at an angle of 19 with respect to a magnetic field, it experiences a magnetic force of magnitude F. At what angle (less than 90) with respect to this field will this particle, moving at the same speed, experience a magnetic force of magnitude 2....
October 2, 2013 by Anonymous

physics
Two long, straight wires are separated by 0.12 m. The wires carry currents of 8.0 A in opposite directions, as the drawing indicates. (a) Find the magnitude of the net magnetic field at the point A. ___T (b) Find the magnitude of the net magnetic field at the point B. ___T
September 21, 2010 by Anonymous

physics
The current density in a cylindrical conductor of radius R = 59.5 cm, varies as J(r) = J0r/R (in the region from zero to R), where J0 = 0.423 C/m2. a) Find the magnitude of the magnetic field at r = 29.75 cm. b) Find the magnitude of the magnetic field at r = 119 cm
December 10, 2012 by Anonymous

physics
What must the charge (sign and magnitude) of a particle of mass 1.47g be for it to remain stationary when placed in a downward-directed electric field of magnitude 690N/C ? Use 9.81m/s2 for the magnitude of the acceleration due to gravity. PART B What is the magnitude of an ...
February 4, 2014 by jrfannin

college gen. physics II
38. A proton initially moves left to right long the ‑axis at a speed of 2 103 m/s. It moves into an electric field, which points in the negative direction, and travels a distance of 0.2 m before coming to rest. If the proton's mass and charge are 1.67 10‑27 ...
July 25, 2010 by Alinkashia

physics
An electron is moving through a magnetic field whose magnitude is 8.70*10^-4 T. The electron experiences only a magnetic force and has an acceleration of magnitude 3.50*10^14 m/s^2. At a certain instant, it has a speed of 6.80*10^6m/s. Determine the angle (less than 90degrees...
April 1, 2008 by Kelly

physics
A 1.6 N loop of wire is hung in a magnetic field as shown. If the spring scale reads 0.60 N when a current of 1.0 A passes through the loop what is the magnitude and direction of the magnetic field?
May 22, 2013 by vivi

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 ...
July 27, 2009 by MP

Physics
An -particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.10 106 V and then enters a uniform magnetic field whose magnitude is 3.10 T. The -particle moves perpendicular to the magnetic field ...
February 6, 2012 by DCM

Physics
An -particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.16 106 V and then enters a uniform magnetic field whose magnitude is 3.00 T. The -particle moves perpendicular to the magnetic field...
March 25, 2013 by Don

Physics
An electrostastic force of 20.0 newtons is exerted on a charge of 8.00 x 10^/2 C at point P in an electric field. The magnitude of the electric field strength at P is Given: Fe = 20 B q = 8.00 x 10^/2 C
February 5, 2010 by Priscilla

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...
October 25, 2011 by Jessica

Physics
3 There are two charges +Q and Q/2 that locate at two positions with a separation of d as shown in Fig. 1. We may put +Q at the origin of the x-axis to facilitate the calculation. (a) Find the electric field for +Q and Q/2 at the position P. (5 points) (b) What is the total ...
September 5, 2010 by David

physics
An electric power line carries a current of 1600 A in a location where the earth's magnetic field is 4.0*10-5 T. The line makes an angle of 75 with respect to the field. Determine the magnitude of the magnetic force on a 130 m length of line.
February 10, 2008 by rick

physics
A conductor of length 0.8 m carrying a current of 2.5 A is kept in a magnetic field of 0.6 Tesla. What is the magnitude of the force experienced by the conductor if it is inclined at an angle 30 to the direction of the magnetic field? Choose one answer. a. 0.6 N b. 1.0 N c. 1...
June 4, 2011 by ashley --- HELP PLEASEE!!!

Physics
A particle has a charge of +1.5 C and moves from point A to point B, a distance of 0.18 m. The particle experiences a constant electric force, and its motion is along the line of action of the force. The difference between the particle's electric potential energy at A and B ...
January 12, 2011 by ali

annie
You want to get an idea of the magnitude of magnetic fields produced by overhead power lines. You estimate that a transmission wire is about 11m above the ground. The local power company tells you that the line operates at 13kV and provide a maximum of 86MW to the local area. ...
December 14, 2009 by physics help

physics
A flat circular coil with 113 turns, a radius of 3.64 10-2 m, and a resistance of 0.524 Ω is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of ΔB/Δ...
October 22, 2013 by Anonymous

Physics
A flat circular coil with 193 turns, a radius of 5.50 x 10-2 m, and a resistance of 0.241 Ω is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of ΔB/&#...
November 3, 2014 by Elle

Physics
Consider a semi-infinite nonconducting rod (that extends infinitely to the right only) and has a uniform charge density. Calculate the magnitude and direction of the electric field at the point, P, which is a distance of R away from the edge of the rod. Does the angle of the...
November 24, 2010 by Ri

Physics
Two charges are placed on the x axis. One of the charges (q1 = +9.3 C) is at x1 = +3.4 cm and the other (q2 = -20 C) is at x2 = +8.9 cm. (a) Find the net electric field (magnitude and direction) at x = 0 cm. (Use the sign of your answer to indicate the direction along the x-...
January 28, 2013 by Jasmine

Physics-Charges
A wall has a negative charge distribution producing a uniform horizontal electric field. A small plastic ball of mass 0.0261 kg, carrying charge of −102 μC, is suspended by an uncharged, nonconducting thread 0.369 m long. The thread is attached to the wall and the ...
March 7, 2012 by Joila

Physics PLEASE HELP!
A flat circular coil with 97 turns, a radius of 4.04 10-2 m, and a resistance of 0.528 Ω is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of ΔB/Δt...
March 14, 2013 by Nixon

physics
A charge of -4.50 10-6 C is placed at a point in space where the electric field is directed toward the right and has a magnitude of 9.00 104 N/C. What are the magnitude and direction of the electrostatic force on this charge?
April 23, 2015 by jeff

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 ...
April 4, 2013 by Don

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 ...
April 4, 2013 by Don

Physics
webassign(.)net/yf/22-30.gif The image above shows some of electric field lines due to 3 poin charges along the vertical axis. All 3 charges have the same magnitude. A. What are the signs of the 3 charges? Explain reasoning. B. At what points is the magnitude of the electric ...
February 2, 2013 by Justin

physics
A circular coil with a radius of 25 cm has 20 turns. The coil is oriented perpendicularly to a magnetic field whose initial magnitude is 3.2 T. Suddenly, the magnetic field vanishes in 0.4 s. a. What is the initial magnetic flux in the coil? b. What is the induced emf in the ...
August 26, 2013 by jim

physics
two point charges are 10.0 cm apart and have chargeso of 2.0 uC (micro)and -2 uC, respectively. What is the magnitude of the electric field at the midpoint between the two charges? i think i know how to do it: both E1 and E2 go in the same direction E1=0.72 * 10^7 and E2 = 0....
March 15, 2009 by physics

physics
A proton, traveling with a velocity of 4.9 106 m/s due east, experiences a magnetic force that has a maximum magnitude of 7.4 10-14 N and a direction of due south. What are the magnitude and direction of the magnetic field causing the force?
February 26, 2014 by Dee

physics
A circular surface with a radius of 0.053 m is exposed to a uniform external electric field of magnitude 1.48 104 N/C. The electric flux through the surface is 72 N m2/C. What is the angle between the direction of the electric field and the normal to the surface?
September 8, 2009 by amber

Physics
A circular surface with a radius of 0.058 m is exposed to a uniform external electric field of magnitude 1.49 104 N/C. The electric flux through the surface is 74 N m2/C. What is the angle between the direction of the electric field and the normal to the surface?
September 6, 2013 by Sarah

Physics
A circular surface with a radius of 0.058 m is exposed to a uniform external electric field of magnitude 1.49 104 N/C. The electric flux through the surface is 74 N m2/C. What is the angle between the direction of the electric field and the normal to the surface?
September 6, 2013 by Sarah

Physics
A circular surface with a radius of 0.058 m is exposed to a uniform external electric field of magnitude 1.49 104 N/C. The electric flux through the surface is 74 N m2/C. What is the angle between the direction of the electric field and the normal to the surface?
September 6, 2013 by Sarah

Physics
A circular surface with a radius of 0.058 m is exposed to a uniform external electric field of magnitude 1.49 104 N/C. The electric flux through the surface is 74 N m2/C. What is the angle between the direction of the electric field and the normal to the surface?
September 8, 2013 by Sarah

physics
i need help w part b and c A proton is released from rest in a uniform electric field of magnitude 388 N/C. (a) Find the electric force on the proton. magnitude N direction (b) Find the acceleration of the proton. magnitude m/s2 direction (c) Find the distance it travels in 2....
December 20, 2011 by ann

jokens
A sphere with a charge of 1.5 x 10-6 C experiences a force of 3.5 x 102 N when it is located at a certain point in an electric field. Determine the magnitude of the electric field intensity at this location. (remember E = Fon q' / q', and 1 C = 1.00 x 10-6 C
September 18, 2014 by Anonymous

Physics
A wire 75cm long carrying a current of 6.0A toward the north passes through a uniform magnetic field. The magnitude of the force acting on the wire is 0.60N and is directed downward. What is the strengh and direction of the magnetic field?
May 5, 2010 by Javier

Physics
An electron is moving paralel to the Earth's surface at the equator in a direction 12 degrees south of east. Its velocity is 9.2 x 10^4 m/s and a magnetic force of 9.4 x 10^-18 N is exerted on the electron. If the magnetic field points south at this location, what is the ...
February 27, 2012 by Doryn

physics II
Two point charges of equal magnitude are 8cm apart. at the midpoint of the line connecting them, their combined electric field has a magnitude of 45 N/C.Find the magnitude of the charge.
April 13, 2011 by ike

physics very hard
webassign(.)net/yf/22-30.gif The image above shows some of electric field lines due to 3 poin charges along the vertical axis. All 3 charges have the same magnitude. A. What are the signs of the 3 charges? Explain reasoning. B. At what points is the magnitude of the electric ...
February 4, 2013 by Julie

walter
A positive charge of 1.5x10^-8 C experiences a force of 0.025 N to the left in an electric field. What are the magnitude and direction of the field?
March 8, 2012 by george

Physics
A long coaxial cable consists of two concentric conductors. The inner conductor is a cylinder with radius R1, and it carries a current I0 uniformly distributed over its cross section. The outer conductor is a cylindrical shell with inner radius R2 and outer radius R3. It ...
April 7, 2013 by abdul rahman

physics
A coil of wire consists of 20 turns, or loops, each of which has an area of 1.5 x 10-3 m 2. A magnetic field is perpendicular to the surface of each loop at all times, so that = o = 0. At time to = 0s, the magnitude of the field at the location of the coil is Bo = 0.050 T...
September 17, 2011 by kait

Physics
At the upper surface of the earth's atmosphere, the time-averaged magnitude of the Poynting vector is referred to as the solar constant and is given by </S/>=1.35103W⋅m−2 . (a) If you assume that the sun's electromagnetic radiation is a plane sinusoidal wave...
May 8, 2013 by amit sharma

Physics
At the upper surface of the earth's atmosphere, the time-averaged magnitude of the Poynting vector is referred to as the solar constant and is given by </S/>=1.35103W⋅m−2 . (a) If you assume that the sun's electromagnetic radiation is a plane sinusoidal wave...
May 13, 2013 by Rohan

Physics
A thin rod L = 9.0 cm long is uniformly charged and has a total charge of 4.4 nC. Find the magnitude of the electric field at a point P located at a distance R = 13.5 cm from the center of the rod when: (a) The point P lies along the axis of the rod Electric field =___kN/C (b...
July 9, 2012 by Rain

Physics
An electron that has velocity v = (3 x 105 m/s) and moves along positive x direction through the uniform magnetic field B = (0.8T) which is along the positive z direction. a. Find the force on the electron (magnitude and direction). (e = - 1.6 x 10-19 C, m=9.1 x10-31 kg) b. ...
April 25, 2011 by asif

Intro T Electrical Engineering
A solid metal sphere with radius 0.430{\rm m} carries a net charge of 0.210{\rm nC} . Find the magnitude of the electric field at a point 0.112{\rm m} outside the surface of the sphere. Find the magnitude of the electric field at a point inside the sphere, 0.112{\rm m} below ...
September 18, 2012 by Habib. L

physics
A magnetic field is oriented at an angle of 42 degrees to the normal of a rectangular area 5.5 cm by 6.8 cm. If the magnetic flux through this surface has a magnitude of 4.8 x 10^-5 Tm^2, what is the strength of the magnetic field?
April 13, 2011 by lovergirl

Physics
At a certain location, the Earth's magnetic field has a magnitude of 5.90E-5 T and points in a direction that is 71.6 below the horizontal. Calculate the magnitude of the magnetic flux through the top of a desk at this location that measures 132 cm by 83.3 cm.
October 18, 2010 by VJC

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 ...
December 5, 2012 by Anonymous

Physics to Elena
At the upper surface of the earth's atmosphere, the time-averaged magnitude of the Poynting vector is referred to as the solar constant and is given by </S/>=1.35103W⋅m−2 . (a) If you assume that the sun's electromagnetic radiation is a plane sinusoidal wave...
May 14, 2013 by Rohan

Physics
A point charge Q1=-2 microcoulomb is located at x=0, and a point charge Q2=+8 microcoulomb, is placed at x=-0.5 on the x axis of a cartesian coordinate system.The goal of this problem is to determine the electric field,at various points along the x axis. a)What is electric ...
February 25, 2013 by Phy

Physics
A proton is moving parallel to a uniform electric field. The electric field accelerates the proton and increases its linear momentum to 5.0 10-23 kg m/s from 1.4 10-23 kg m/s in a time of 6.5 10-6 s. What is the magnitude of the electric field?
August 30, 2007 by Mary

physics
A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic field of magnitude 0.0840 T, it produces a Hall voltage of 0.660 V. When it is used to measure an unknown magnetic field, the Hall voltage is 0.360 V. What is the magnitude of...
April 5, 2011 by Rachel

Phizzics....
Both positive and negative charges produce electric fields. Which direction, toward or away from itself, does the field point for each charge?
May 15, 2012 by matin

physics
A beam of electrons enters a pair of croseed electric and magnetic fields in which the electric field strenght of 3.0*104 V m^-1 and magnetic flux density of 1*10^-2 T. If the beam is not deflected from its path by the fields, what must be the speed of the electrons? Thanks!
February 25, 2009 by Anonymous

Physics
A proton travelling 1.5x10^6 m/s enters 2 vertically charged parallel plates held 0.15m apart. The top plate is held at +250V and the bottom is grounded (0V). A magnetic field can be applied to the area between the plates to counteract the electric force acting on the proton. ...
February 2, 2015 by Sandara

magnets
A particle of charge +q and mass m is initially launched at speed v in a region with a constant, uniform magnetic field of magnitude B. If the particle launched in a direction perpendicular to the magnetic field, by the time the particle has traveled a distance d, the work ...
December 18, 2013 by Anon

Physics 11th Grade
A foam ball of a mass of 0.150 g carries a charge of -2.00 nC. The ball is in a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?
April 15, 2010 by Adam

Physics
A 10 charge sits at a point in space where the magnitude of the electric field is 1900 .What will the magnitude of the field be if the 10 charge is replaced by a 20 charge?
March 29, 2012 by Frustrated

Physics
A particle with a charge of 31 C moves with a speed of 62 m/s in the positive x-direction. The magnetic field in this region of space has a component of 0.50 T in the positive y-direction, and a component of 0.61 T in the positive z-direction. What is the magnitude and ...
April 25, 2013 by Valerie

Physics
A particle with a charge of 31 C moves with a speed of 62 m/s in the positive x-direction. The magnetic field in this region of space has a component of 0.50 T in the positive y-direction, and a component of 0.61 T in the positive z-direction. What is the magnitude and ...
April 25, 2013 by Valerie

physics
An electric dipole lies on the x-axis, consisting of a -2.3nC charge at x = -11cm and a +2.3nC charge at x = 11cm . Part A Compute the electric field at the point (16cm , 0). Find the magnitude of the electric field. Express your answer to two significant figures and include ...
February 4, 2014 by jrfannin

Physics
Interactive LearningWare 22.2 at wiley/college/cutnell reviews the fundamental approach in problems such as this. A constant magnetic field passes through a single rectangular loop whose dimensions are 0.35 m 0.55 m. The magnetic field has a magnitude of 2.1 T and is inclined ...
October 5, 2007 by Mary

Physics
The Earth has an electric field with magnitude roughly 100 N/C at its surface. A) Assuming there is a point charge at the earth's center creating this field, how much charge does the earth posses? Treat the earth as a sphere of radius 6.37 * 10^6 m. B)As the earth orbits the ...
March 6, 2008 by jenish

physics
A 0.0150-m wire oriented horizontally between the poles of an electromagnet carries a direct current of 9.5 A. The angle between the direction of the current and that of the magnetic field is 25.0 as shown. If the magnetic field strength is 0.845 T, what is the magnitude and...
May 6, 2010 by lakhvir

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