Question

Two conductors A and B have 500 and 100 units of negative charge. When the conductors are connected by an electric wire, the conventional current flows from:

Options

• A to B

• B to A

• current does not flow

• none of these

Answer 1

B to A

Explanation:

A has more negative charge, so it is at a lower potential than B. Conventional current flows from higher potential to lower potential; hence, it flows from B to A. Electrons flow in the opposite direction, from A to B.