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Question
An electric dipole is placed in a uniform electric field. The net electric force on the dipole
Options
is always zero
depends on the orientation of the dipole
can never be zero
depends on the strength of the dipole
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Solution
is always zero
An electric dipole consists of two equal and opposite charges. When the dipole is placed in an electric field, both its charges experience equal and opposite forces. Therefore, the net resultant force on the dipole is zero. But net torque on the dipole is not zero.
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