Capacitor
A device that stores electrical energy in an electric field is known as to be capacitor. It is a passive electronic component with two terminals. It basically consists of two conductors separated by a non-conductive region. This non-conductive region can either be a vacuum or an electrical insulator material known as a dielectric from Coulomb’s law a charge on one conductor will exert a force on the charge carriers within the other conductor, attracting opposite polarity charge and repelling like polarity charges, thus an opposite polarity charge will be induced on the surface of the other conductor. The conductors thus hold equal and opposite charges on their facing surfaces, and the dielectric develops an electric field. An ideal capacitor is characterised by a constant capacitance `C`. In farads in the SI system of units, defined as the ratio of the positive or negative charge `Q` on each conductor to the voltage `V` between them. Parallel plate capacitor is the most commonly used capacitor.
When a dielectric is placed in an electric field, the electric field inside the dielectric
Options:
(a) increases
(b) decreases
(c) constant
(d) zero