Question

Two charges are placed a certain distance apart in air. If a brass plate is introduced between them, the force between them will

• A. increase
• B. decrease
• C. remain the same
• D. become zero

Answer 1

The correct option is C remain the same

If two like charges are placed in air, then they will experience a force of repulsion from each other.

If a metal plate is introduced between them, then nothing will happen.

Because, if they are positively charged, then both will try to attract electrons of the plate along opposite sides and thus no net force will act on the electrons of the plate and the plate will remain as it is.

If the charges are negative then both will try to repel electrons from both sides and nothing will happen.

An unaffected plate doesn't affect the force between two charges.