A neutral conducting bar is mounted on an insulating stand
PHYSICS · Single correct · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance
Problem
A neutral conducting bar is mounted on an insulating stand. A negatively charged plastic rod is brought near the left end of the bar without touching it. While the rod remains in place, the right end of the bar is momentarily connected to ground with a wire. The wire is removed first, and then the plastic rod is taken away. Which statement describes the net charge that remains on the conducting bar?
(a) The bar acquires a net negative charge that is distributed uniformly along its length.
(b) The bar remains electrically neutral because grounding removed any induced charge.
(c) The bar acquires a net positive charge that is distributed uniformly along its length.
(d) The bar acquires a net positive charge that is concentrated at the left end of the bar.