Question

The conduction current in ideal cases through a circuit is zero when charge on the capacitor is?

Answer 1

Hint
Conduction current is the electric current which exists in a conductor when the electrons flow in the conductor at a uniform rate. So, it is the current in a conductor when the electric field remains constant with respect to time. The cause of conduction current is the flow of electrons in the conductor under the effect of applied potential difference. Conduction current density is defined when the charge carriers are electrons. Such electrons are available in plenty in conductors like copper. The total amount of charge passing a point per second per unit area is then the conduction current density. Based on this we have to solve this question.

Complete step by step answer
We know that capacitors are charged through a resistor. Initially, when the charge is zero, the potential across the capacitor is zero. Hence maximum current flows through the circuit. As the potential builds up, the current reduces. When the capacitor builds charges fully. the potential difference across the resistor becomes zero and hence the current will be zero.

Note
A capacitor is a device that stores electrical energy in an electric field. It is a passive electronic component with two terminals. The potential energy in a capacitor is stored in an electric field, where a battery stores its potential energy in a chemical form. However, in general batteries provide higher energy density for storage, while capacitors have more rapid charge and discharge capabilities like greater power density.