Question

The work done across two points having a potential difference of 20 V is 60 J. Then the electric charge flowing between the two points is:
1. 30 C
2. 3 C
3. 1200 C
4. 120 C

Answer 1

Correct Answer - Option 2 : 3 C

The correct answer is 3 C.

• Electric potential difference is known as voltage, which is equal to the work done per unit charge to move the charge between two points against a static electric field.
• Therefore, \(Voltage = {Work Done \over Charge}\)
• Here, Given Voltage = 20 V and Work done = 60 J
  Then electric charge = \({Work Done \over Voltage}\) = \({60 \over 20}\) = 3 C.