Question

ESO173
ALLN
22.
A point charge q of mass m is located at the centre
of a ring having radius R and charge Q with its axis
oriented along X-axis. When the point charge is
displaced slightly, it accelerates along the X-axis
to infinity; the ultimate speed of the point charge
(consider no energy loss in radiation) is :-
(1)
[2kQq
V mR
(2)
kQq
mR
(3)
kQq
V2mR
(4) zero
ES0174​

Answer 1

Answer:

(a).

I hope this answer will help you.