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An electric dipole moment vec P = ( 2. ...

An electric dipole moment ` vec P = ( 2. 0 hat I + 3 . 0 hat j) mu C`. M is placed in a usifrom electric field
` vec E = (3 hat I + 2 . 0hat k ) xx 10^5 N C^(-1)`.

A

The torque that `vecE` exerts on ` vecp` is `(0.6 hat I -0.4 hat j -0.9 hat k ) N m`.

B

The potential energy of the dipole is `-0.6 J`

C

The potential energy of the dipole is `0.6 J`.

D

If the dipole is rotated in the electric field , the maximum potential energy of the dipole is `1. 3J`.

Text Solution

Verified by Experts

The correct Answer is:
A, B, D
` vec tau = vec P xx vec E 8(0. 6 hat I -0. 4 hat j -0. 9hat k) N.m`
`U=- vec P . Vec E=- 0. 6 J`
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