A and B are two identical conducting rods. A is given positive charge – InterviewSolution

1.	A and B are two identical conducting rods. A is given positive charge and B is connectedto a cell as shown in the figure. Will there be any change in the electrostatic force between A and B if the switch is closed ?
Answer» Solution :There will be no electrostatic FORCE between A and B. When switch is closed, electric current passes through B. The quantity of charge entering B is equal to the quanity of chargeleaving B making it electrically neutral . And as charges in B are in motion, ATTRACTION between A and B of electrostatic INDUCTION is negligible.

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