Q 2407580488.     A charged particle of mass `m_1` and charge `q_1`
is revolving in a circle of radius `r`. Another
charged particle of charge `q_2` and mass `m_2` is
situated at the centre of the circle. If the
velocity and time period of the revolving
particle be v and `T` respectively, then

WBJEE 2016
A

`v= sqrt ((q_1q_2r)/(4 pi epsilon_0 m_1))`

B

`v= 1/m_1 sqrt((q_1q_2)/(4 pi epsilon_0 r))`

C

`T= sqrt ((16 pi^3 epsilon_0 m_1^2 r^3)/(q_1 q_2))`

D

`T= sqrt ((16 pi^3 epsilon_0 m_2 r^3)/(q_1 q_2))`

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