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An electric dipole has the magnitude of ...

An electric dipole has the magnitude of its charge as `q` and its dipole moment is `p`. It is placed in a uniform electric field `E`. If its dipole moment is along the direction of the field, the force on it and its potential energy are respectively

A

q . E and max.

B

2 q. E and min.

C

q . E and min.

D

zero and min.

Text Solution

Verified by Experts

The correct Answer is:
D
When the dipole is in the direction of field then net force is q E (- qE) = 0 and its potential energy is minimum = - p . E . = - q a E
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