magnetism

Question 1

What aid the unit for measurement of a electric field?

Answer 1

tesla = 1N * s/m*C

Question 2

how many teslas equal a gauss?

Answer 2

1T = 10 ^4 gauss

Question 3

What diamagnetic materials?

Answer 3

no unpaired electrons, have no magnetic field

wood, glass etc

Question 4

What are paramagnetic material?

Answer 4

have unpaired electrons

become weakly magnetic in the presence of an magnetic field

Question 5

What are ferromagnetic materials?

Answer 5

permanently magnetized under the curie temperature

Question 6

What is the formula for the magnitude of a magnetic field generated by a current in a wire generated by a perpendicular distance?

Answer 6

B = uoi/2pier

uo = 4pie *10^-7

B = magnitude of the magnetic field

Question 7

what is the right hand rule to determine the direction of a magnetic field generated by a current carried in a wire?

Answer 7

use your right thumb to point in the direction of the current. use your right fingers to point in the direction of the location. curl your fingers around the wire and that is the direction of the magnetic field

Question 8

What is the formula for the magnitude of a magnetic field generated by a current traveling in a loop?

Answer 8

B = uoi/2r

uo = 4pie * 10^-7

B= magnitude of the magnetic field

Question 9

what is the right hand rule to determine the direction of a magnetic field generated by a current carried in a loop?

Answer 9

point your thumb in the direction of the magnetic field curl your fingers around the loop and the direction of your fingers is where the magnetic field is traveling

Question 10

What is the formula for a force exerted on a charge as it travels in a magnetic field?

Answer 10

F = qvB sin theta

Question 11

How do you determine the direction of a magnetic force on a moving charge?

Answer 11

point your thumb in the direction of qv, point your fingers in the direction of B (the magnetic field) your palm will be the direction of the force.

Question 12

when does a magnetic field does not exert a force on a charge?

Answer 12

when it is moving parallel to the magnetic field. it has to be mooing perpendicular to the magnetic field

Question 13

What is the formula for the centripetal force exerted on a charge in a magnetic field?

Answer 13

F= qvB = mv^2/r

Question 14

What is the formula for the force exterted on current when traveling through a wire?

Answer 14

F= iLB sin theta

Question 15

What are all the relevant formulas dealing with magnetism?

Answer 15

B= uoI/2pier (straight current carrying wire)
B= uoi/2r ( circular loop carrying wire)
F = qvBsin theta  (point charge moving through a magnetic field)

F = iLB sin theta (for a current carrying through a magnetic field)