Published by:
CGP EDU Academic Team
Published on: August 13, 2026
An electric dipole consists of charges 
and 
separated by a distance 
, fixed at the ends of a light rigid (insulating) rod. The dipole is placed in a uniform electric field 
and slightly rotated by a small angle 
from its equilibrium position. The system undergoes angular SHM. What is the correct expression for the time period 
of this oscillation? (Mass of both charges is 
)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Torque on dipole:
(for small 
)
Time period: 
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