Question

Suppose you have a glass tube with metal plates at the ends, which are connected to wires leading outside the tube. The air has been removed from the interior of the tube leaving a very good vacuum. There is a positively charged particle initially sitting at rest between the two plates. See the accurate diagram below. A positively charged rod is brought in contact with the left hand wire. What, if anything, happens to the charged particle? Explain your answer completely. Two negatively charged rods with equal charge are simultaneously touched to the two wires at the end of the tube. What, if anything, will happen to the charged particle? Explain.

Answer 1

when left hand wire is brought in contact with positively charged rod then charge is transferred from rod to wire by induction and wire is positively charged and positive charge kept in between feels electric force due to electric field generated by wire which pushes the charge article towards right wire

when two negatively charged rods with equal charge are touched to two wires then wires get negatively charged by induction and positive charge experience electric force that is equal and opposite to each other so net force on charge is zero and it stays in equilibrium at center.

please rate it up thanks :)