MHT CET 2022 Physics question
An electric dipole of moment is lying along a uniform electric field . The work done in rotating the dipole through 90 is [sin 0 = cos 90 = 0, cos 0 = sin 90 = 1]
Answer: (A)
Solution
The work done in rotating a dipole from angle to (with respect to the field) is . The dipole starts along the field () and is rotated through ($θ_2 =
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