Electrostatics Question 707

Question: On decreasing the distance between the two charges of a dipole which is perpendicular to electric field and decreasing the angle between the dipole and electric field, the torque on the dipole

Options:

A) increases

B) decreases

C) remains same

D) cannot be predicated

Show Answer

Answer:

Correct Answer: B

Solution:

[b] Since $ \tau =pE\sin \theta $ on decreasing the distance between the two charges, and on decreasing angle $ \theta $ between the dipole and electric field, $ \sin \theta $ decreases therefore torque decreases.



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