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(A) Electric charge $ / $ time

(B) Work done $ / $ time

(C) Work done $ / $ charge

(D) Work done $ \times $ charge

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The potential difference between two points is defined as the work done in moving a unit charge from the first point to the other. Thus, the potential difference $ \left( V \right) $ can be written as-

$ V = \dfrac{W}{q} $

where $ q $ is a charge and $ W $ is the work done in moving this charge.

Thus, the potential difference between the two points is equal to, Work done $ / $ charge.

The unit of potential difference is Volts $ \left( V \right) $ . It can also be written in terms of Joules per Coulomb as- $ 1V = \dfrac{{1J}}{{1C}} $

Another method to calculate the potential difference is by using Ohm’s law.

If the value of current passing through a conductor between these two points and the resistance of the wire is known, the potential difference is given by the product of electric current and the resistance as-

$ V = IR $

where $ I $ is the electric current and $ R $ is the resistance of the wire.

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