An electric dipole of moment p⃗ is lying along a uniform electric field E⃗. The work done in rotating the dipole by 90° is :

Question

Dr. Abubacker · Accepted Answer

[Solution from source] Work done in rotating a dipole in a uniform field is W = pE(cos θ₁ − cos θ₂). From θ = 0° to 90°, W = pE(1 − 0) = pE. The value 2pE applies to rotating it through 180°. Answer (4).

Q. An electric dipole of moment p⃗ is lying along a uniform electric field E⃗. The work done in rotating the dipole by 90° is :

Explanation

Reviewed by Dr. Abubacker

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