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An electric dipole of moment    is lying along a uniform electric field   . The work done in rotating the dipole by 90° is
  • a)
    pE/2
  • b)
    2pE
  • c)
    pE
  • d)
    √2pE
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
An electric dipole of moment is lying along a uniform electric field.T...
Work done in rotating a dipole
= pE (1 – cos θ)
If θ = 90º, work done = pE (1 – 0) = pE
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An electric dipole of moment is lying along a uniform electric field.T...
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An electric dipole of moment is lying along a uniform electric field.The work done in rotating the dipole by 90° isa)pE/2b)2pEc)pEd)√2pECorrect answer is option 'C'. Can you explain this answer?
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