Question

A large nonconducting sheet $M$ is given a uniform charge density. Two uncharged small metal rods $A$ and $B$ are placed near the sheet as shown in figure. Then

• A. $M$ attracts $A$
• B. $M$ attracts $B$
• C. $A$ attracts $B$
• D. All of these

Answer 1

Answer: (D)

By electrostatic induction the charge will appear on $A$ and $B$ due to charged sheet $M$.
There may be two cases- when $M$ is positively charged and when it is negatively charged.
(shown in fig). In the figure all attract each other.