Physics [1 Mark Question Answer]

Work done = charge x potential difference
Or, W = 5 x 1 = 5 J

Joule/coulomb is known as 'volt'.

Electrical potential is a 'scalar' quantity.

The potential difference between two points may be defined as the work done in moving a unit positive charge from one point to the other.

Current is measured by an ammeter.

Current defines the rate of flow of charges in a conductor.

The direction of conventional current is taken as the direction of flow of positive charges.
The direction of electronic current is taken as opposite to the direction of motion of electrons.

We can maintain a potential difference between the ends of a conductor by connecting the two ends of the conductor to the two terminals of a battery or cell.