Current and Charge Flashcards
1
Q
Current
A
Rate of flow of charge
2
Q
Current equation
A
I =Q/t
3
Q
Potential Difference
A
Work done per coulomb of charge that passes between two points
4
Q
Energy electricity equation
A
Energy = Current x Voltage x time
5
Q
Resistance
A
The ratio of p.d applied across it to the current passing through it
6
Q
Drift Velocity equation
A
I = nxAxVxQ
7
Q
Resistance equation
A
V=IR
8
Q
Resistivity equation
A
Resistance = resitivity x lenght / area
9
Q
Resistivity
A
numerically equal to the resistance of a sample of the material of unit length and cross-sectional area
10
Q
power energy equation
A
P = energy / time
11
Q
power electricity equation
A
P = IV
12
Q
Power resistance equation
A
P = v^2 / R
