Ch. 5 Equations Flashcards
1
Q
Coulomb’s Law/Force due to electric field (equation)
A
2
Q
Coulomb constant (k)
A
3
Q
Electric field strength
A
4
Q
Current
A
5
Q
Potential difference (definition)
A
V = W/q = ΔE/q
6
Q
Potential difference (current + resistance)
A
V[ab]=I[a]R[ab]
7
Q
Power
A
P=VI
8
Q
Resistance (resistivity)
A
R = ρL/A
9
Q
Force on charge in magnetic field (current and individual)
A
F=BIL (current)
F=Bqv (individual)
10
Q
emf
A
emf = I(R + r)
11
Q
current (drift speed)
A
I = nAvq
12
Q
resistance of resistors in series
A
r1 + r2 + r3 … = r
13
Q
resistance of resistors in parallell
A
1/r1 + 1/r2 + 1/r3 … = 1/r
