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QNEET-2013-Ph-1597: NEET 2013 Physics - Class 12 NEET-2013-Ph-1597 Solution: An electric dipole of dipole moment p is aligned parallel to a…
An electric dipole of dipole moment p is aligned parallel to a uniform electric field E. The energy required to rotate the dipole by is pE infinity
Multiple Choice Options
- A p 2 E
- B pE
- C infinity
- D pE 2
Step-by-Step Verified Solution
Potential energy of dipole,
U = _ p E ( cos _ _ 2 _ cos _ _ 1 )
Here, _ 1 = 0 o , _ 2 = 90 o
_ U = � pE(cos90� � cos0�) = � pE(0 � 1) = pE