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An electric dipole of dipole moment is placed in a uniform electric field . The work done in rotating the dipole from an angle of to with the field is:
- A.
- B.
- C.
- D.
Show correct answer & step-by-step solution
Correct answer: B —
Solution
- Potential energy .
- Initial energy .
- Final energy .
- Work done .
- Hence the answer is (B).
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