The potential difference between two points in an electric circuit is measured by a …………… which is connected in …………… with the circuit.

1. voltmeter, series
2. voltmeter, parallel
3. ammeter, series
4. ammeter, parallel

The obstruction offered to the flow of current by a wire is called :

1. current
2. potential
3. resistance
4. charge

1 ohm is equal to:

1. 1 volt
2. Volt x ampere
3. volt/ampere
4. all of the above

The unit of conductance is :

1. volt
2. ohm
3. ohm^-1
4. ampere