A and B are two points in an electric field. If the work done in carrying 4.0 coulombs of electric charge from A to B is 16.0 joules, the potential difference between A and B is
Correct answer: C. 2.0 V
- A. zero
- B. 4 V
- C. 2.0 V
- D. 16 V
Explanation
The potential difference (V) is equal to the work done (W) per unit charge (Q), i.e., V=W/Q . Given that work done is 16.0 J and charge is 4.0 C, V=16.0/4.0 =4.0 V.Incorrect options: (a) If there was no potential difference, no work would be done in moving the charge.(b) This calculation is incorrect based on the given work and charge.(d) This value is not consistent with the given work and charge.
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