Electrostatics Question 287

Question: An electric dipole when placed in a uniform electric field E will have minimum potential energy, if the positive direction of dipole moment makes the following angle with E [CPMT 1981; MP PMT 1987]

Options:

A) π

B) π/2

C) Zero

D) 3π/2

Show Answer

Answer:

Correct Answer: C

Solution:

Potential energy = pEcosθ

When θ=0 .

Potential energy = - pE (minimum)



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