Current and Potential Difference

The definition of an electric current

A measure of the rate of flow of electric charge through a given cross-section of a conductor.

Current is equal to....

.....the amount charge flow divided by time taken

SI unit for current

Ampere (A)

An electric field is a region...

.....which an electric charged particle experiences an electric force.

The magnitude of the force decreases....

.......as the distance between the charge and the source of the electric field increases

The direction of the electric force line

Avoids the positive charge

Electric field strength, E

Potential difference

Work done in moving one coulomb of charge from one point to another.

Arrangement of voltmeter

Must be connected in parallel to the circuit

Arrangement of ammeter

Must be connected in series to the circuit