An electric dipole is held in a uniform electric field. The dipole is aligned parallel to the field.Find the work done is rotating it through the angle of 180^@.

An electric dipole is held in a uniform electric field. The dipole is

1.	An electric dipole is held in a uniform electric field. The dipole is aligned parallel to the field.Find the work done is rotating it through the angle of 180^@.
Answer» Solution :Here `theta_1 = 0^@ and theta_2 = 180^@` `:.` WORK done fore ROTATION of dipole `W = PE( costheta_1 - cos theta_2)` `= pE [ cos 0^@ - cos 180^@]` `= + 2pE`.

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An electric dipole is held in a uniform electric field. The dipole is aligned parallel to the field.Find the work done is rotating it through the angle of 180^@.

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