Question

There are two bodies A and B. 'A' has a positive charge whereas 'B' has no charge. When A and B are connected by a metallic wire, in what direction will the electrons flow?

• A. Electrons flow in random directions and will effectively move from A to B
• B. Electrons flow in random directions and will effectively move from B to A
• C. Electrons flow in random directions and will effectively stay in their initial position.
• D. Electrons won't move in any direction

Answer 1

The correct option is B

Electrons flow in random directions and will effectively move from B to A

In a conductor, the electrons always move in random directions. When there is a difference in potential, the electrons will effectively move from a region of lower potential (higher negative charge) to a region of higher potential (lower negative charge)

Here, the uncharged body B is said to be at a lower potential than the positively charged body B. There is a difference in potential. Hence, electrons will effectively move from the negatively charged body A to the uncharged body B.