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An electric dipole of moment vecp is pla...

An electric dipole of moment `vecp` is placed in a uniform electric field `vecE` . Then
(i) The torque on the dipole is `vecp xxvecE`
(ii) The potential energy of the system is `vecp.vecE`
(iii) The resultant force on the dipole is zero.

A

(i), (ii) and (iii) are correct

B

(i) and (iii) are correct and (ii) is wrong

C

Only (i) is correct

D

(i) and (ii) are correct (iii) is wrong

Text Solution

Verified by Experts

The correct Answer is:
B
`U =-PE cos theta =-vecP.vecE`
`tau = vecP xxvecE , F_("net") = 0`
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