The work done in moving a charge of 2 C between two points with potential difference of 12 V is: MCQ with Answer and Explanation

The work done in moving a charge of 2 C between two points with potential difference of 12 V is:
A. 6 J
B. 24 J
C. 14 J
D. 0.167 J
Answer: Option B
Solution (By JKSSB Mock Tests)
Work done W = charge (Q) × potential difference (V). Thus W = 2 C × 12 V = 24 J. This follows from definition of voltage: 1 volt = 1 joule per coulomb. The work done equals the change in electrical potential energy. This fundamental relationship is crucial in electricity. Memory tip: W = QV is analogous to mechanical work = force × distance. Such direct formula applications are common in competitive exams to test basic concept retention. Always verify units: coulomb × volt = joule, confirming dimensional consistency.

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