The plates of a parallel plate capacitor have on area of `90 cm^(2)` each and are separated by `2.5 mm`. The capacitor is charged to 400 V. How much electrostatic energy is stored in it ? How much when it is filled with a dielectric medium `K = 3` and then charged ? If it is first charged as an air capacitor and then filled with th dielectric, then ?

The plates of a parallel plate capacitor have an area of 100cm^(2) each and area separated by 2.5 mm. the capacitor is charged to 200V. Calculate the energy stored in the capacitor.

The plates of a parallel plate capacitor have an area of 90cm^(2) each and are separated by a 2mm The capacitor is charged by connecting it to a 400V supply.Then the density of the energy stored in the capacitor ..........?

The area of each plate of parallel plate air capacitor is 150 cm^(2) . The distance between its plates is 0.8 mm. It is charged to a pot. Diff of 1200 volt. What will be its energy ? What wil be the energy when it is filled with a medium of K = 3 and then charged. If it is charged. If it is charged first as an air capacitor and then filled with this dielectric, what will happen to energy ?

The plates of a paralllel plate capacitor have an area of 90 cm^(2) each and are separated by 2.5mm. The capacitane is charged by connecting it to a 400V supply. (a) How much electrostatic energy is stored by the capacitor ? (b) View this energy as stored in the electrostatic field between the plates, and obtain the energy per unit volume (u). Hence arrive at a realtion between U and the magnitude of electric field E between the plates.

The plates of a parallel plate capacitor have an area of 90cm^(2) and each are separated by 2mm. The capacitor is charged by connecting it to a 400 V supply. Then the energy density of the energy stored (in Jm^(-3) ) in the capacitor is (take epsi_(0)=8.8xx10^(-12)Fm^(-1) )

A parallel plate capacitor has plates of area 4 m^2 separated by distance of 0.5 mm. The capacitor is connected across a cell of emf 100 V. Find the capacitance, charge and energy stored in the capacitor.

A parallel plate capacitor having plate area A and separation between the plates d is charged to potential V .The energy stored in capacitor is ....???

A 900 pF capacitor is charged by 100V battery. (a) How much electrostatic energy is strored by the capacitor ? The capacitor is disconnected from the battery and connected to another 900 pF capacitor. How much is the electrostatic energy stored in the system ?

A parallel plate air capacitor has a capacitance C . When it is half filled with a dielectric (K=2) , the percentage increase in the cpacitance will be