Dielectric Constant
The Dielectric Constant is the ratio of the applied electric field strength to the strength of the decreased value of the electric field capacitor when a dielectric slab is placed between the parallel plates. The formula is as follows:
εr = E0 / E
where E0 is the applied electric field, E is the net field, & εr is the dielectric constant.
The greater the dielectric constant, the greater the amount of charge that can be held. The capacitance of a capacitor is increased by a factor of the dielectric constant when the gap between the plates is completely filled with a dielectric. C = εr C0, where C0 is the capacitance between the plates with no dielectric.
Dielectrics and Polarisation
Have you noticed how many of the insulators are made of wood, plastic, or glass? But why is that? When we utilise wood or plastic, why don’t we receive electric shocks? Why do you only get severe shocks from metal wires? We’ll look at dielectrics, polarisation, the dielectric constant, and more in this chapter. We’ll look at some typical applications and examples of these dielectrics as well.
Table of Content
- What is a Dielectric?
- Classification of Dielectrics
- Induced Electric Dipole Moment
- Electric Polarization
- Dielectric Polarization
- Sample Questions