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magnetism

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physics
explain the close relationship between magnetism and electricity? and How can electricity produce magnetism, and magnetism produce electricity.

Science
A magnet was placed near a pile that contained both iron and sulfur. The magnet was moved gradually closer to the pile. As it neared the pile, the magnet started attracting small pieces of iron from the pile. What best describes? A. Solution or iron and sulfer can be separated...

Science
Name and describe two ways in which magnetism is used in technology related to medicine? Im really not sure of the answer to this, but i do know that magnetism is the force of attraction or repulsion.

science
Look at the picture on the immediate left here: http://en.wikipedia.org/wiki/Earth's_magnetic_field Also: http://image.gsfc.nasa.gov/poetry/magnetism/magnetism.html HOW IS THE EARTH'S MAGTISM USEFUL thanks it helped me alot!!!!!!!!!!!

Science; magnets
I know that magnets are attracted to iron. I don't know the proccess of how magnets stick to something. I also need to know more sciency magnet words like magnetism and ferrous.like that. what is magnetism. stuff like that. i need help because I might fail the pssa. i don't ...

Science
Where does magnetism comes from? Magnetic forces arise from the movement of electrons (electric charge). In case you want it, here is more information on magnetism. http://en.wikipedia.org/wiki/Magnetism http://www.phy6.org/Education/Imagnet.html http://www.factmonster.com/ce6...

electricty and magnetism
did anyone do the question on the graph? can you help me please/ thanks

physics
Why a magnet lose magnetism when heated?

science
How is magnetism used to support the theory of seafloor spreading?

science
how is the earth's magnetism useful It provides a navigation mark for hikers and sailors.

Ivy Tech
The source of magnetism is A)polarization B)magnetic monopoles C)electrons D)protons

Science: Discovering Magnetism
How is the strength of two magnetic poles related to the force between them?

Physics - Magnetism
The direction of magnetic lines of force change if an iron piece is placed in its field. Why?

physics-magnetism
The direction of magnetic lines of force change if an iron piece is placed in its field. Why?

earth
#15 The primary cause of crustal movement is_________ a.) conduction b.) convection c.) magnetism d.) radiation please help have no idea

Gen Science 2
lightning is actually an enormous display of the concept of? A) chemical heating B) solar energy C) magnetism D) groundind

Science, one more time...
Insulation keep a house warm because it is a poor conductor of A. Heat B. Mass C. Sound D. Magnetism what do you think, and why?

science
im 11 years old do you know a science fair project i can do for magnetism. or a website. im in six grade

Psysics (Magnetism)
A current-carrying wire is placed in a uniform magnetic field, but there is no magnetic force on it. How is this possible?

magnetism
A straight copper wire that is 1 millimeter in diameter carries a current of 20 milliamps. What the magnitude of the largest magnetic field created by this wire in Tesla?

magnetism and electricity
An infinitely long wire carrying a current of 2 A is bent at a right angle as shown in the Figure. What is the magnetic field magnitude in Tesla a point P, 10 cm from the corner? 6.06810^6 T is wrong

Magnetism
I need to calculate the magnetic field strength at 30 cm distance of a coil with a diameter of 17 cm. Directly at the coil surface I measure 100 Gauss. Please advise.

physics - magnetism
A simple generator has a 780-loop square coil 21.0 cm on a side. How fast must it turn in a 0.650 T field to produce a 150 V peak output? I got 6.71 rev/s but that is wrong

magnetism!!
A straight copper wire that is 1 milimeter in diameter carries a current of 20 miliamps. Whas the magnitude of the largest magnetic field created by this wire in Tesla? pls help :(

Electricity and Magnetism
In a thundercloud there are two equal and opposite charges ±35C separated by 6km. Assuming that they can be treated as point charges, what is the magnitude of the electric force between them?

Physics 103
So I have a question about magnetism. A charged particle moves through a region of space and experiences no magnetic force. Does that mean that the magnetic field is zero?

physics- magnetism
A 0.35 m2 coil with 50 turns rotates at 5 radians per sec2 in a magnetic field of 0.6 Tesla. What is the value of the rms current in the coil if the coil has the resistance of 3.3 Ω?

ELECTRICITY AND MAGNETISM
2. Find the charge in potential energy of the system of two charges plus a third charge q3= 3.00µC as the latter charge moves from the infinity to point P.

electricity and magnetism
a battery and two resistors R1 And R2 are connected in series . if R1 is 340ohms and the voltage across R2 is 39% of the battery voltage,find R2.

Science
I need help in Science Project. The topic is called "How does the size affect the force of magnetism". I didn't see any procedure in how to do this particular topic can you help me?

Chemistry
What is the magnetism of F2+, and how many unpaired electrons does it possess? Would F2+ act the same way as F+? In that case it would be paramagnetic and have 2 electrons.

magnetism
How can a permanent magnet be demagnetized? cut the magnet in half heat the magnet up (my choice) strike the magnet with a heavy blow both the second and third choices above

electricity and magnetism
Four equal point charges, +3micro coulomb, are placed at the four corners of a square that is 40cm on a side. Find the force on any one of the charges.

Physics Electricity and magnetism
Two 10-cm-diameter charged rings face each other, 15.0 cm apart. Both rings are charged to + 30.0 nC . What is the electric field strength at the center of the left ring?

PHYSICS
Give at least one example of an application of each branch: motion properties of materials sound light electricity magnetism properties of atoms nuclear physics Dont understand this.

electricity magnetism physics
A proton is release from rest at the origin in a uniform electric field in the positive x direction with magnitude 850N/C. What is the change in electric potential energy when the proton travels to x = 2.50m

PHYSICS-electricity & magnetism
An electric field exits inside a fluorescent tube of diameter 3.00cm. In one second, 2.00x10^18 electrons and 0.50x10^18 positive ions pass through a certain cross section. What is the current in the tube?

science
i need helping answering this homework question on magnetism: which of the following will induce a current in a nearby circuit? A. any magnetic field B. an electromagnet with varying current C. an unchanging electromagnet D. a powerful, unmoving horseshoe magnet

physics
Some of the branches of physics that you will study in this course investigate motion, the properties of materials, sound, light, electricity and magnetism, properties of atoms, and nuclear reactions. Give at least one example of an application of each branch.

physics
Some of the branches of physics that you will study in this course investigate motion, the properties of materials, sound, light, electricity and magnetism, properties of atoms, and nuclear reactions. Give at least one example of an application of each branch.

ELECTRICITY AND MAGNETISM
a dust particle with mass =5.0*10-9 kg and charge q =2.0nC starts from rest at point a and moves in a straight line from a to the point b ! what is its speed V at point b? please some on SOLVE it and send me ON my emial after got solved pleaseee ?

Materials
Give at least one example of an application of each branch: Motion -cellphone Properties of Materials Sound -Radios Light -Candle Electricity -Calculator Magnetism -VCR's Properties of atoms -Computers Nuclear physics -?

ELECTRICITY AND MAGNETISM
4. A charge q1 =2.00µC is located at the origin and a charge q2=-6.00µC is located at (0, 3.00) m. 1. Find the total electric potential due to these charges at point P, whose coordinates are (4.00, 0) m.

Physics: Electricity and Magnetism
Four charges on a rectangle that is 6 cm by 3 cm. All but one of the corners has a positive charge. The magnitudes of the charges are all 8.40e-12 C. What is the net electric field at the center of the rectangle?

physics, magnetism
A long thin copper wire has a mass of 100 grams / meter. If it is arranged near the surface of the earth pointing north in a 0.5 Tesla magnetic field pointing west, what current (in amps) is needed to levitate the rod (against gravity)?

currerent amd magnetism
An Aluminium wire of 1mm diammeter below the critical temperature of 1.2 K. iTS CRITICAL MAGNETIC FIELD IS 0.01t, What is the maximum current in Amperes that you can send down the wire for it to remain superconducting? what formular can I use to solve this? someone please help.

electrical trade theory
what is the function of the field coils of a DC motor? They provide a magnetic field that is opposite that of the rotating axle. Here is an interactive site that may help although this site has paermanent magnets for the field magnetism. (Broken Link Removed) THANK U DrBob222

Science
Which mineral property test is the best way to tell the difference between each type of mineral? Why? Mineral Properties are: -Luster -Color -Magnetism -Hardness -Streak -Cleavage There are other mineral properties like Odor and Taste.

Physics Electricity and Magnetism
A microscopic droplet of ink in an ink-jet printer is deflected onto the paper by a force of 2.34×10-4 N. If the field causing the deflection is 6.62 kN/C, what is the charge on the droplet? What equation do I use to solve and What does each value mean in the equation? thnks

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...

magnetism
A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in A-m^2? What is the magnitude of the torque on the loop in N-m?

physics- magnetism
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?

Electricity and Magnetism
When you apply a magnetic field to a material it is observed that the magnetic field inside decreases. What material property have you observed? a) Paramagnetism b) Diamagnetism c) Ferromagnetism

electricity and magnetism
A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in A-m^2? What is the magnitude of the torque on the loop in N-m?

Chemistry
I'm doing a virtual lab in which I'm trying to separate tin, aluminum, and steel. Does the order in which I heat them at 300 degrees and observe their magnetism matter? The lab says the three are isolated when they are heated to 300 degrees and then placed under a magnet, but ...

Electricity and Magnetism
Consider free protons following a circular path in a uniform magnetic field with a radius of 1m. At t =0s, the magnitude of the uniform magnetic field begins to increase at 0.001 T/s . Find the tangential acceleration of the protons .

physics- magnetism
A step-up transformer used in a car has a potential difference of 10 V across the primary coil with 12 turns. What is the current in the secondary coil of resistance 2.5 Ω if the number of turns in the secondary coil is 54 turns?

Science
i have to do this packet about magnetism, but we havent even learned anything about it yet. I have got some of the answers but i cant figure out the rest. What do you need to make an electromagnet? What is an advantage of using an electromagnet? Name 3 places where you would ...

Magnetism
A circular wire loop of mass M and radius R carries a current I. It hangs from a hinge that allows it to swing in the direction perpendicular to the plane of the loop. A uniform magnetic field B exists everywhere in space pointing upwards. What angle θ does the plane of ...

magnetism
Two long, parallel wires carry current in the x-y plane. One wire carries 30 A to the left along the x-axis. The other carries 50 A to the right along a parallel line at y = 0.28 m. At what y-axis position in meters is the magnetic field equal to zero?

Physics (Magnetism)
In an experiment on the shuttle, an electron with a speed of 6.3 x 105 m/s [N] and a mass of 9.11 x 10-31 kg is shot through an external magnetic field. Determine the strength and orientation of the magnetic field required so that the electron's direction of travel remains ...

Physics magnetism
The inductor in the circuit has a resistance of 100 ohms connected to a long solenoid with a loop density of 100 turns per centimeter and 59 H inductance connected to a 12 V battery. When the switch has been closed for a long time, what is the magnetic field magnitude inside ...

Electricity and magnetism
A carbon atom's nucleus and its electrons become separated by 20nm. How much work does it take to separate them in Joules? In the previous problem if found that the magnitude of the force the nucleus feels towards the electrons is 2.07*10^11N. My first attempt was W=F*d = 2.07...

Physics - The Branches of Physics
Give at least one example of an application of each branch: Motion -cellphone Properties of Materials Sound -Radios Light -Candle Electricity -Calculator Magnetism -VCR's Properties of atoms -Computers Nuclear physics -? Could you check to see if Ive done this right? And I ...

Physics, Electricity and Magnetism, Sciences
Two small pith balls, each of mass m = 17.4 g, are suspended from the ceiling of the physics lab by 1.2 m long fine strings and are not moving. If the angle which each string makes with the vertical is = 17.9°, and the charges on the two balls are equal, what is the magnitude...

science
2) Which is not an example of matter? A. water B. air(i think it this one) C. gold D. sound 3) The amount of space an object occupies is called its ..... A. volume(i think it this one) B. mass C. electricity D. gravity 4) Atoms in a molecule are joined together by.. A. ...

Science
Describe the method you would use to separate eachg mixture. Methods: Picking apart, filtering, using density, using magnetism, dissolving, evaporating. a)sand and water b)oil and water c salt and pepper d)sand and pebbles e)sugar and water 2. List several different filters in...

Physics
In a physics study group, a friend says in a profound tone that light is the only thing we can see. After a few laughs, your friend goes on to say that light is produced by the connection between electricity and magnetism. Is your friend correct? My responds is that my friend ...

physics electricity and magnetism
We are told that the magnitude of the negative charge on the electron is exactly equal to the magnitude of the postive charge on the proton. But is it? Suppose that these magnitudes differ from each other by 0.000040 %. Each copper coin contains 3 X 1022 copper atoms. (a)With ...

Urgent : Electricity and Magnetism
Two charged spheres are kept at a great distance from each other. Sphere A has charge +20q and sphere B has charge -14q. A neutral conducting sphere, sphere X, is then touched upon the sphere A, then sphere B, and X, repectively, after these q(a),q(b) and q(x) are the charges ...

Physics Electricity and magnetism
A current with sinusoidal time-dependence, whose peak value is 3.55 A and frequency is 463 cycles per second, passes through a long straight wire. A rectangular 72.2 cm × 32.5 cm loop of copper wire is located 80.2 cm from the wire and is coplanar with it. Calculate the ...

Astronomy
The speed of light is the same for all observers, and the laws of physics are the same for all observers in uniform motion. These two statements are fundamental postulates of A) general relativity B) Newtons laws of motion C) special relativity D) the laws of electricity and ...

physics electricity & magnetism
Charge Q=4 micro-coulombs is distributed uniformly over the volume of an insulating sphere of radius R=.05 meters. What is the potential difference between the center of the sphere and the surface of the sphere? How do I approach this problem? I tried integrating dV=-Edr from ...

5th Grade Science
The force of attraction between the Earth and an object is called? A. Magnetism B. Mass C. Energy D. Gravity http://en.wikipedia.org/wiki/Gravity hey ken. someone told me it was gravity So you think it is gravity

magnetism
Many metals become superconductors (zero resistance, zero loss, zero heating) at low temperatures. If they are warmed above the critical tempareature, the superconductivity is lost. Also, if the metal experiences a magnetic field above a critical value, the superconductivity ...

Science
I have been waiting for 30 minutes and noone has answered this question. Please help me! Describe the method you would use to separate eachg mixture. Methods: Picking apart, filtering, using density, using magnetism, dissolving, evaporating. a)sand and water b)oil and water c ...

Electricity and Magnetism
This was actually a test question: Additional Information: This question is based on the Hall effect in a wire. Question: I want you to build a magnetic feild sensor. You have all the properties of the materials and the dimentions of the sensor. a) derive a formula for a ...

Electr. and Magnetism
1) A charge of 80nC is uniformly distributed along the x-axis from x= 0 to x= 2.0m. Determine the magnitude of the electric field at a point on the x-axis with x=8.0m. a] 30 N/C b] 15 N/C c] 48 N/C d] 90 N/C e] 60 N/C 2) 3 point charges, 2 positive and one negative, each ...

current and magnetism
A current loop with radius 20 cm and current 2 A is in a uniform magnetic field of 0.5 T. Considering all possible orientations of the loop relative to the field, what is the largest potential energy difference (in Joules) you can find between two orientations? I tried the ...

Magnets-Physics
I have a few questions that I am not too sure of. why is it inadvisable to make a horseshoe magnet from a flexible material? -is it because it would have enough magnetism Do the poles of a horseshoe magnet attact each other? If you bend the magnet so that the poles get closer ...

Science
My answers are at the bottom. Describe the method you would use to separate eachg mixture. Methods: Picking apart, filtering, using density, using magnetism, dissolving, evaporating. a)sand and water b)oil and water c salt and pepper d)sand and pebbles e)sugar and water 2. ...

Physics (Electricity & Magnetism))
Two positive point charges are placed on the x-axis. One, of magnitude 4Q, is placed at the origin. The other, of magnitude Q is placed at x=3 m. Neither charge is able to move. Where on the x-axis in meters can I place a third positive point charge such that the magnitude of ...

magnetism
infinitely long wire carries a current I100A. Below the wire a rod of length L 10cm is forced to move at a constant speed v=5m/s long horizontal conducting rails. The rod and rails form a conducting loop. The rod has resistance of R 0.4ohms. The rails have neglibible ...

magnetism
Three conducting loops are situated side-by-side in the plane of the page. A clockwise current flows in the center loop B, and its magnitude is decreasing in time. The induced currents in loops A and C: A) flow in opposite directions,A clockwise, B counterclockwise) b)both ...

Science - Physical
Earth's magnetic field induces some degree of magnetism in most of the iron objects around you. With a compass you can see that cans of food on you pantry shelf have north and south poles. When you pass the compass from their bottoms to their tops, you can easily identify ...

magnetism
Many metals become superconductors (zero resistance, zero loss, zero heating) at low temperatures. If they are warmed above the critical tempareature, the superconductivity is lost. Also, if the metal experiences a magnetic field above a critical value, the superconductivity ...

Electricity and Magnetism
(1 point) The sum of two point charges is +8μC. When they are 3.7cm apart, each experiences a force of 63 N . Find the charges given that the force is: a) repulsive. (List your two answers in increasing order of magnitude) μC b) attractive. (List your two answers in ...

physics
Choose the correct description for each "Law" of Electricity & Magnetism. The choices are faradays law lenz law ampere law are my choices correct Gives the amount of current resulting from a changing magnetic field.AMPERE LAW Gives the strength of the magnetic field resulting ...

magnetism
In earlier learning sequences we described how a static magnetic field cannot change the speed (and therefore kinetic energy) of a free charged particle. A changing magnetic field can, and this is one way particle beams are accelerated. Consider free protons following a ...

Geology
Which of the following pieces of evidence supports the plate tectonic theory? A. Ocean-floor sediments are oldest at the ridge crest. B. The stripe patterns of high- and low-intensity magnetism are mirror images on both sides of an oceanic ridge. C. Ocean-floor sediments are ...

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. ...

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. ...

magnetism
very large loop of metal wire with radius 1 meter is driven with a linearly increasing current at a rate of 200 amps/second. A very small metal wire loop with radius 5 centimeter is positioned a small distance away with its center on the same axis (the loops are coaxial). The ...

Physics
Which of the following statements for magnetism are true? (Give ALL correct answers) A) B does work on a charge only when the charge has a velocity component perpendicular to B. B) B acts only on charges at rest. C) B does work on a charge only when the charge has a velocity ...

physics opinion
A common pickup for an electric guitar consists of a coil of wire around a permanent magnet. The permanent magnet induces magnetism in the nearby guitar string. When the string is plucked, it oscillates above the coil, thereby changing the magnetic field that passes through ...

magnetism
A charged particle with charge q is moving with speed v perpendicular to a uniform magnetic field. A second identical charged particle is moving with speed 2v perpendiculuar to the same magnetic field. The time to complete one full circular revolution for the first particle is...

magnetism
• A charged particle with charge q is moving with speed v in a uniform magnetic field. A second identical charged particle is moving with speed 2v perpendiculuar to the same magnetic field. The time to complete one full circular revolution for the first particle T1. The time...

magnetism
Moving a magnet inside a coil of wire will induce a voltage in the coil. How can the voltage in coil be increased? move the magnet inside the coil of wire more slowly hold the magnet stationary move the coil of wire slowly and keep the magnet stationary move the magnet inside ...

SCIENCE GRADE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
If you had a piece of magnet and you stuck it to an iron nail, and you stuck it to a small washer. How would the washer stick to the iron nail.Please check to see if I'm write! The piece of magnet gets attracted to iron objects the iron nail.the iron nail sticks to the magnet....

electronics technician
19. In a solenoid, where is the magnetic field strongest? A. Outside the coil C. At the north pole B. Inside the coil D. At the south pole 20. What is a typical coil voltage for a low-voltage relay circuit? A. 2 VDC C. 12 VDC B. 5 VDC D. 120 VDC 21. Electromagnetic stepping ...

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