JEE Mains · Physics · STD 12 - 2. Electric potential and capacitance
A point charge of \(10^{-8} C\) is placed at origin. The work done in moving a point charge \(2 \mu C\) from point \(A (4,4,2) m\) to \(B (2,2,1) m\) is _________ J.
- A \(45 \times 10^{-6}\)
- B \(0\)
- C \(30 \times 10^{-6}\)
- D \(15 \times 10^{-6}\)
Answer & Solution
Correct Answer
(C) \(30 \times 10^{-6}\)
Step-by-step Solution
Detailed explanation
Work done by external agent : \(W _{ ext }=\Delta U ;\) \(\Delta U \rightarrow\) Change in potential energy in taking the charge from initial to final configuration…
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