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Q: How much work is done in moving a charge of 4C across two points having potential difference 10 V?
  • A. 10 J
  • B. 48 J
  • C. 40 J
  • D. 44 J
Correct Answer: Option C - Given, V = 10 v Q = 4 C W = ? Voltage(V)=work(W)/charge(Q) W=V x Q= 10x4 Work done (W) = 40 J [∴ S.I. unit of work - Joule]
C. Given, V = 10 v Q = 4 C W = ? Voltage(V)=work(W)/charge(Q) W=V x Q= 10x4 Work done (W) = 40 J [∴ S.I. unit of work - Joule]

Explanations:

Given, V = 10 v Q = 4 C W = ? Voltage(V)=work(W)/charge(Q) W=V x Q= 10x4 Work done (W) = 40 J [∴ S.I. unit of work - Joule]