Question

On moving a charge of \( 20 \, \text{C} \) by \( 2 \, \text{cm} \), 2 J of work is done, then the potential difference between the points is:

• A. 1 V
• B. 2 V
• C. 0.5 V
• D. 8 V

Hint:

The potential difference is the work done per unit charge to move a charge between two points.

Answer 1

The Correct Option is B

Step 1: Use the formula for potential difference.
The potential difference \( V \) is given by: \[ V = \frac{W}{q} \] where \( W \) is the work done and \( q \) is the charge.
Step 2: Calculation.
Substituting the given values, we find: \[ V = \frac{2 \, \text{J}}{1 \, \text{C}} = 2 \, \text{V} \]
Final Answer: \[ \boxed{2 \, \text{V}} \]