An electric dipole is placed in a uniform electric field. The net electric force on the dipole
A
is always zero
B
depends on the orientation of the dipole
C
depends on the dipole moment
D
is always finite but not zero
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Solution
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Dipole means two equal and opposite charge i.e q and −q. When dipole is placed in uniform electric field E, Force due to q is F+=qE Force due to −q is F−=−qE thus, net force F=qE−qE=0 The total force on the dipole in the uniform field is always zero
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