Please select the correct answer Three conducting plates may

Three conducting plates may be charged positively or negatively or be electrically neutral. In the drawing shown, plate A is attracted by both plates B and C. What occurs if plates B and C are brought close together? 13 and C would be attracted to one another. B and C would be repelled by one another. B and C would exert no force on each other. There is too little information given to make a conclusion.

Solution

B and C have same charge . so they would be repelled by one another.

Answer is (b).