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प्रश्न
What work must be done to rotate an electric dipole through an angle θ with the electric field, if an electric dipole of moment p is placed in a uniform electric field E with p parallel to E?
विकल्प
W = pE (1 - cosθ)
W = pE (1 + cosθ)
W = 2pE (1 - cosθ)
None of these
MCQ
उत्तर
W = pE (1 - cosθ)
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