A parallel plate capacitor has two plates of dimensions `10 cm xx 7 cm` separated by a distance of 0.7 mm. A glass plate of thickness 0.4 mm (dielectric constant = 6) and another dielectric medium of thickness 0.3 mm (dielectric constant = 2.5) are placed between the plates of the capacitor. Calculate the capacitance of the capacitor before and after introduction of the dielectric media.

Compare the capacitance of a parallel plate capacitor with and without the dielectric medium.

When a sheet of dielectric is inserted between the two plates of a capacitor, its capacitance

Define .dielectric constant. of a medium. Briefly explain why the capacitance of a parallel plate capacitro increases, on introducing a dielectric medium between the plates.

The plates of a parallel plate capacitor have an area of 100 cm^(2) each and are separated by 3mm. The capacitor is charged by connecting it to a 400 V supply. (a) Calculate the electrostatic energy stored in the capacitor. (b) If a dielectric of dielectric constant 2.5 is introduced between the plates of the capacitor then find the electrostatic energy stored and also change in the energy stored.