Question

if we induce a wire with positive charge no negative charge ,then can we pass current through it

Answer 1

The answer is definitely yes. The positive charge on the wire cannot by itself create a field inside the wire that opposes electron flow (as dictated by the potential difference across the ends).

This is because all static positive charge will lie on the surface and not net charge will be enclosed inside. As a result, the field created by the positive charge is 0.

Hence, electron flow remains unaffected.