1.

In a region of constant potential

Answer»

the electric field is uniform
the electric field is ZERO
there can be no charge inside the region.
the electric field shall necessarily change if a charge is placed outside the region.

Solution :E and V are related to ,
`E = -(DV)/(dr)`
E =0 then V = constant
Here `(dV)/(dr)` =0 hence E =0 , so according to `E = (kq)/(r^(2)), Q =0`
`:. ` True options are (B) and ( C ).


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