An uncharged insulated conductor A is brought near a charged insulated condutor B. what happens to charge and potential of B ?

Options

A. the charge and potential of B, both remain constant
B. both charge and potential change
C. the charge remains constant, but potential decreases
D. the charge remains constant, but potential increases

Answer

C

Explanation

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