A conductor having an excess of electrons is said to be at …………… potential while a conductor having a deficit of electrons is at ………….. potential.

1. lower, lower
2. lower, higher
3. higher, lower
4. higher, higher

The force between the two charges is …………… when they are at an infinite separation.

1. finite
2. infinite
3. zero
4. none of the above

The S.I. unit of potential is :

1. Joule/coulomb
2. Volt
3. Ampere
4. Both (a) and (b)

On increasing the resistance in a circuit, the current in it:

1. decreases
2. increases
3. remains unchanged
4. nothing can be said