F5C3: Electricity Flashcards
1
Q
electric current
A
rate of charge flow, I =Q/t
2
Q
electric field
A
a region where an electric charge experiences electrical force
3
Q
potential difference, V
A
work done in moving 1 unit of charge from 1 point to another in a circuit
4
Q
resistance, R
A
ratio of the potential difference across a conductor to the current flowing through it, R=V/I
5
Q
Ohm’s Law
A
The current flowing through an ohmic conductor is directly proportional to the potential difference
6
Q
electromotive force, e.m.f
A
work done by a source in driving a unit of change around a complete circuit
7
Q
power, P
A
rate of energy dissipated or transferred
