A Circular ring of radius `3a` is uniformly charged with charge `q` is kept in `x-y` plane with center at origin. A particle of charge `q` and mass `m` is projected frim `x=4` towards origin. Find the minimum speed of projection such that it reaches origin. A. `sqrt((q^(2))/(15piepsilon_(0)ma))`B. `sqrt((q^(2))/(30piepsilon_(0)ma))`C. `sqrt((q^(2))/(10 piepsilon_0(ma))`D. `sqrt((q^(2))/(20 piepsilon_0(ma))`

A Circular ring of radius `3a` is uniformly charged with charge `q` is

1.	A Circular ring of radius `3a` is uniformly charged with charge `q` is kept in `x-y` plane with center at origin. A particle of charge `q` and mass `m` is projected frim `x=4` towards origin. Find the minimum speed of projection such that it reaches origin. A. `sqrt((q^(2))/(15piepsilon_(0)ma))`B. `sqrt((q^(2))/(30piepsilon_(0)ma))`C. `sqrt((q^(2))/(10 piepsilon_0(ma))`D. `sqrt((q^(2))/(20 piepsilon_0(ma))`
Answer» Correct Answer - A

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