Displacement Current in Capacitor MCQ [Free PDF] – Objective Question Answer for Displacement Current in Capacitor Quiz

The current in conductors connecting the voltage source to the plates of a capacitor is the charging current and not the conduction or leakage current.

Under normal conditions, capacitors contain an insulating material called dielectric sandwiched between the plates of the capacitor. Since insulators can carry only an electric field but not moving carriers, therefore normally a capacitor has a displacement current and not a conduction current.

Displacement current is a type of current and hence it has the same unit as that of current that is ampere.

Displacement current is the current which arises due to variations in the field. Hence, it does not depend on the moving charges but it changes with time which causes variation in the field.

Displacement current is the current which arises due to variations in the field. Change in the field results in the formation of magnetic fields. Hence displacement currents lead to the magnetic field between the plates of a capacitor.

Ideally, dielectrics are insulators and do not contain any free electrons. But no dielectric is a perfect dielectric, hence the free electrons are due to impurities present in each dielectric.

Conduction current is the flow of electrons from the positive plate of the capacitor to the negative plate of the capacitor, not through the battery. Hence the type of current which flows without passing through the battery is conduction current.

Paper capacitors are fixed capacitors because, like fixed capacitors, their capacitance value remains constant. In paper capacitors, paper is used as the dielectric.

Electrolyte capacitors use chemical processes like pyrolysis to store charge between their plates.

Ceramic capacitors, electrolyte capacitors, and paper capacitors are fixed capacitors whereas tuning capacitors is a variable capacitor, hence it is the odd one out.