Electrostatics Question 315

Question: An electric dipole of moment p placed in a uniform electric field E has minimum potential energy when the angle between p and E is [UPSEAT 2004]

Options:

A) Zero

B) π2

C) π

D) 3π2

Show Answer

Answer:

Correct Answer: A

Solution:

U=PEcosθ

It has minimum value when q = 0o i.e. (UP)min=PE×cos0o=PE



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