The Magnetic Field 1 Flashcards Preview

Electricity & Magnetism > The Magnetic Field 1 > Flashcards

Flashcards in The Magnetic Field 1 Deck (14)
Loading flashcards...
1
Q

The electric force is directed along…

A

E

2
Q

The electric force acts on…

A

moving and stationary charges

3
Q

What type of work can the electric force do?

A

non zero work

4
Q

Distinctions between E and B

A
  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).
5
Q

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

A

q0, v, B

6
Q

Fb is perpendicular to…

A

both v and B

7
Q

Is cross product commutative?

A

No

8
Q

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

A

Cannot change kinetic energy. Magnets deflect.

9
Q

Relationship between magnetic field direction and field lines

A

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

10
Q

magnetic field form

A

closed loops

11
Q

Magnet shapes

A

Bar, Horseshoe, C magnet

12
Q

Compass points in what direction?

A

South pole of magnetic field.

13
Q

Torque

A

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

14
Q

radial acceleration =

A

v^2/r