The Magnetic Field 1

Question 1

The electric force is directed along…

Answer 1

E

Question 2

The electric force acts on…

Answer 2

moving and stationary charges

Question 3

What type of work can the electric force do?

Answer 3

non zero work

Question 4

Distinctions between E and B

Answer 4

1. The Magnetic force is perpendicular to B
2. The Magnetic force acts on moving charges only.
3. The Magnetic force does no work (no V).

Question 5

For a moving charge in a magnetic field, Fb is proportional to:

Answer 5

q0, v, B

Question 6

Fb is perpendicular to…

Answer 6

both v and B

Question 7

Is cross product commutative?

Answer 7

No

Question 8

Magnetic fields cannot do this. what good is it then?

Answer 8

Cannot change kinetic energy. Magnets deflect.

Question 9

Relationship between magnetic field direction and field lines

Answer 9

Field direction is tangent to magnetic field lines at any point.

Question 10

magnetic field form

Answer 10

closed loops

Question 11

Magnet shapes

Answer 11

Bar, Horseshoe, C magnet

Question 12

Compass points in what direction?

Answer 12

South pole of magnetic field.

Question 13

Torque

Answer 13

A measure of a force’s ability to induce angular acceleration.

Question 14

radial acceleration =

Answer 14

v^2/r