Question

A charge of 10 coulomb is brought from infinity to a point \( P \) near a charged body and in this process 200 joules of work is done. Electric potential at point \( P \) is:

• A. 10 V
• B. 100 V
• C. 200 V
• D. 20 V

Hint:

Electric potential is the work done per unit charge to move a charge from infinity to a point in an electric field. Use the formula \( V = \frac{W}{q} \) to calculate it.

Answer 1

The Correct Option is B

The electric potential \( V \) is calculated as: \[\nV = \frac{W}{q}\n\] Where: - \( W = 200 \, \text{J} \) (work) - \( q = 10 \, \text{C} \) (charge) Calculating: \[\nV = \frac{200}{10} = 20 \, \text{V}\n\] Therefore, the potential is 20V.