1.

Ten electrons are equally spaced and fixed around a circle of radius R. Relative to V = 0 at infinity, the electrostatic potential V and the electric field E at the centre C are [AMU 2000]

A.            \[V\ne 0\] and \[\vec{E}\ne 0\]
B.                                      \[V\ne 0\] and \[\vec{E}=0\]
C.            \[V=0\] and \[\vec{E}=0\]      
D.            \[V=0\] and \[\vec{E}\ne 0\]
Answer» C.            \[V=0\] and \[\vec{E}=0\]      


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