A dipole of dipole moment 'p' is placed in non-uniform electric field along x-axis. Electric field is increasing at the rate of 1Vm−1. The force on dipole is:
A
0
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B
2p
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C
p/2
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D
p
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Solution
The correct option is Bp Force is given as the negative gradient of potential energy. F=−dUdx
Potential energy for an electric dipole is U=−→p.→E