Topic 3-Magnetism

Question 1

magnetic force is a f __force, meaning

Answer 1

field force
no contact needed

Question 2

what is the source of a magnetic field?

Answer 2

motion of +/- charged particles

Question 3

field lines point ___ for a bar magnet (inside and out)

Answer 3

inside S-N
outside N-S

Question 4

earth’s geographic north is actually the magnetic

Answer 4

south

Question 5

a compass north points

Answer 5

magnetic south

Question 6

field around a wire RHR

Answer 6

thumb is I, fingers B

Question 7

biot savart law vr cross product=

Answer 7

vrsin(angle between)

Question 8

for RHR B is __ vr is

Answer 8

thumb, fingers

Question 9

magnetic field of a moving charge is ___ direction to motion

Answer 9

perpendicular

Question 10

B due to long straight wire

Answer 10

muleI/2pir

Question 11

B due to the current loop

Answer 11

muleIR^2/2(R^2+y^2)^(3/2)

Question 12

EF due to p(dipole moment)

Answer 12

1/2pie0 x 1/y^3

Question 13

magnetic dipole moment formula

Answer 13

mule= IA

Question 14

B formula using magnetic dipole

Answer 14

B=mule/2pi x 1/y^3

Question 15

in relation to B what direction is magnetic dipole moment

Answer 15

the same

Question 16

the magnetic moment of an electron has 2 components

Answer 16

the magnetic moment of orbit + magnetic moment of spin

Question 16

the magnetic moment of an electron has 2 components

Answer 16

the magnetic moment of orbit + magnetic moment of spin

Question 17

for magnetic moment if there is an even number of e’s they can

Answer 17

cancel each other out