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A circular ring of radius R with uniform...

A circular ring of radius R with uniform positive charge density `lambda` per unit length is located in the y z plane with its center at the origin O. A particle of mass m and positive charge q is projected from that point `p( - sqrt(3) R, 0,0)` on the negative x - axis directly toward O, with initial speed V. Find the smallest (nonzero) value of the speed such that the particle does not return to P ?

A

The particle corses O and goes to infinity.

B

The particle returns to P.

C

The particle will just reach O.

D

The particle crosses O and goes to `-Rsqrt(3)`.

Text Solution

Verified by Experts

The correct Answer is:
C
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