ELECTRIC CHARGE

The rate of flow of an electric charge is known as :

• Electric potential

• )electric conductance

• electric current

• none of these

The SI unit of electric current is :

• ohm

• farad

• volt

• ampere

The instrument used for measuring electric current is :

• ammeter

• potentiometer

• voltmeter

• galvanometer

The unit of potential difference is :

• ampere

• volt

• joule

• ohm

A current of 2A flows trough a conductor whose ends are at a p.d of 4V. The resistance of the conductor is :

• 8 Ω

• 0.5 Ω

• 6 Ω

• 2 Ω