Question

The force between two point charge in vacuum is $15N$. If a brass plate is introduced between them will -

• A. Becomes zero
• B. Remains the same
• C. Becomes $30N$
• D. Becomes $60N$

Answer 1

The correct option is A Becomes zero

The copper is a metal means a conductor. So the electric field inside the conductor is zero. Thus the electric field at one charge due to other will be zero. Therefore the force between them will also zero. $(F=qE)$