Electrostatics Question 254
Question: A small sphere carrying a charge -q? is hanging in between two parallel plates by a string of length L. Time period of pendulum is
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: A
Solution:
When dipole is given a small angular displacement q about it’s equilibrium position, the restoring torque will be
or
with
therefore
