Understanding capacitors

A parallel-plate capacitor with capacitance C₀ stores charge of magnitude Q₀ on plates of area A₀ separated by distance d₀. The potential difference across the plates is ΔV₀. A second capacitor is identical to the first capacitor except the plate area is doubled to 2A₀. What is the ratio C_new/C₀ ?

A parallel-plate capacitor has a charge Q and plates of area A. What force acts on one plate to attract it toward the other plate?

A parallel-plate capacitor with capacitance C₀ stores charge of magnitude Q₀ on plates of area A₀ separated by distance d₀. The potential difference across the plates is ΔV₀.

If the capacitor is attached to a battery and the charge is doubled to 2Q₀, what is the ratios C_new/C₀

A parallel-plate capacitor with capacitance C₀ stores charge of magnitude Q₀ on plates of area A₀ separated by distance d₀. The potential difference across the plates is ΔV₀. A second capacitor is identical to the first capacitor except the plate area is doubled to 2A₀. What is the ratio V_new/_V0 ?

A vacuum-insulated parallel-plate capacitor with plate separation d has capacitance C0.

What is the capacitance if an insulator with dielectric constant κ and thickness d/2 is slipped between the electrodes? Assume plate separation is unchanged.

A parallel-plate capacitor with capacitance C₀ stores charge of magnitude Q₀ on plates of area A₀ separated by distance d₀. The potential difference across the plates is ΔV₀.

If the capacitor is attached to a battery and the charge is doubled to 2Q₀, what is the ratio ΔV_new/ΔV₀?

A parallel plate air filled capacitor shown in Fig. has a capacitance of 2 uF. When it is half filled with a dielectric of dielectric constant k = 3 as shown in Fig. (b), its capacitance becomes

Capacitance of a parallel plate air capacitor depends on

The capacitance of a capacitor can be increased by:

A parallel plate capacitor of capacitance 100 pF is to be constructed by using paper sheets of 1.0 mm thickness as dielectric. If the dielectric constant of paper is 4.0, the number of circular metal foils of diameter 2.0 cm each required for this purpose is

Find the capacitance of a parallel plate capacitor that has two square plates both having a side length of 6 cm, where these plates are seperated by 15 mm. Assume the insulating material between the two plates is a vacuum.

A fully charged parallel-plate capacitor remains connected to a battery while you slide a dielectric between the plates. What happens to the following quantities (i) C (ii) Q (iii) ΔV

Find the capacitance of a parallel plate capacitor if the area of each plate is 0.1 m² and the distance between the plates is 0.1 inch (2.54 mm). The dielectric is air.

Find the capacitance of a spherical coducting shell having radius 9 mm.

The introduction of a metal plate between the plates of a parallel plate capacitor increases its capacitance by 4.5 times. If d is the separation of the two plates of the capacitor, the thickness of the metal plate introduced is