# 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