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An electric dipole is placed in a non- uniform electric field, then

1. The resultant force acting on the dipole is always zero
2. Torque acting on it may be zero
3. The resultant force acting on the dipole may be zero
4. Torque acting on it is always zero

Correct answer: The resultant force acting on the dipole may be zero

Solution

In a non-uniform electric field, the forces on the +q and -q charges are generally unequal, so the dipole can experience a net force. However, at certain positions or field configurations, these forces can cancel, making the resultant force zero; thus it may be zero, not always.

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