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An electric dipole of dipole moment p is placed in a uniform external electric field

An electric dipole of dipole moment p is placed in a uniform external electric field E. Then the,

Options

(a) torque experienced by the dipole is E x p
(b) torque is zero, if p is perpendicular to E
(c) torque is maximum, if p is perpendicular to E
(d) potential energy is maximum, if p is parallel to E

Correct Answer:

torque is maximum, if p is perpendicular to E

Explanation:

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