What is the work done in carrying a charge of 4 C across two points having a potential difference of 18 V?
- 72 J
- 24 J
- 7.2 J
- 4.5 J
Show answer and solution
Correct answer: A. 72 J
1. Work done W = charge x potential difference = q x V.
2. = 4 C x 18 V.
3. = 72 J.
_Source: RRB Group D CEN-02/2018 PYQ, Q.53._