Question

An electric current will flow from end A to B of a wire if:

No work is done in moving any charge from one end of the wire to the other.
Work is done in moving a positive charge from A to B.
Work is done in moving a positive charge from B to A.
Work is done in moving a negative charge from B to A.

Answer 1

electric current will flow from end A to B of a wire if:

No work is done in moving any charge from one end of the wire to the other.

Work is done in moving a positive charge from A to B.

Work is done in moving a positive charge from B to A.

Work is done in moving a negative charge from B to A.