Chapter 22 - Electric Fields Flashcards
1
Q
Define electric field strength.
A
E = F/Q
2
Q
Coulomb’s Law
A
F = Qq/4π ɛ0 r(squared) for the force between two point charges.
3
Q
Gravitational field vs. electric field comparison.
A
Mass vs. charge.
Always attractive vs. attractive or repulsive.
Point masses and point charges have radial fields.
g = F/m vs. E = F/Q
4
Q
Electric field strength between two parallel plates.
A
E = V/d
d is separation between plates.
5
Q
Describe the path of a charged particle moving at right angles to an electric field?
A
Parabolic.
Horizontal component of velocity remains constant.
Vertical component increases, final velocity given by EQL/mv.
6
Q
Electric potential (V)
A
Work done per unit charge in bringing the charge from infinity to that point.
