Question Details

There exists a uniform electric field of 20 i ^ N/C. A dipole moment | P | = 15 cm is placed at angle 30° with electric field. Torque on dipole is.

Options

A

250 Nm

B

100 Nm

C

200 Nm

D

150 Nm

Correct Answer :

150 Nm

Solution :

|τ| = P.E sin θ
= 15 × 20 × sin 30°
= 150 Nm

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