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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 p. E

B

zero and minimum

C

q. E and maximum

D

2q. E and minimum

Text Solution

Verified by Experts

The correct Answer is:
B
`F=p"dE"/"dr"=0` (`because` E= constant )
`u=-vecp.vecE`=-PE (minimum )
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