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What work must be done to rotate an elec...

What work must be done to rotate an electricdipole thurgh an angle `theta` with the electric field, if an electric dipole of moment P is placed in an uniform electric field E with P parallel to E ?

A

`W=pE(1-costheta)`

B

`W=pE(1+costheta)`

C

`W=2pE(1-costheta)`

D

none of these

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The correct Answer is:
A
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