Question

An uncharged insulated conductor A is brought near a charged insulated conductor B. Then for charge and potential of B :

• A. both will remain constant
• B. both will change
• C. the charge will remain constant, but potential will decrease
• D. the charge will remain constant, but potential will increase

Answer 1

The correct option is C the charge will remain constant, but potential will decrease

By induction negative charge developes on surface of A close to B and positive charge developes on surface of A away from B, (when B carries positive charge). Therefore, overall potential of B decreases, charge of B remains unchanged.