EFFECT OF DIELECTRIC IN A CAPACITOR

The capacitance of a parallel plate capacitor without any medium between its plates is given by When a dielectric completely fills the space between the plates of the capacitor, the capacitance increases K times, where K is the dielectric constant (relative permitivity) of the dielectric. If a dielectric slab of thickness t (<d) is introduced … Continue reading EFFECT OF DIELECTRIC IN A CAPACITOR

Electric field inside a dielectric

Why does the electric field inside a dielectric decrease when it is placed in an external electric field? (Thushara asked) Answer: The net electric field inside a dielectric decreases due to polarization. The external electric field polarizes the dielectric and an electric field is produced due to this polarization. This internal electric field will be … Continue reading Electric field inside a dielectric