A parallel plate air capacitor consists of two circular plates of diameter `8 cm` . At what distance should the plates be held so as to have the same capacitance as that of a sphere of a diameter `20 cm` ?

An air capacitor has plates of 6 cm diameter. At what distance should the plates be placed so as to have the same capacitance as a sphere of diameter of 90 cm?

A parallel plate capacitor consists of two identical circular plates of radius 3 cm which are separated by 2.5mm. Calulate the capacitance. What will be its capacitance if the separation is reduced to half the initial value?

The diameter of each of plate of a parallel plate air capacitor is 0.06 m. What should be the distance between its plates, so that its capacitance becomes equal to that of a sphere of diameter 0.1 m?

A air filled parallel plate capacitor having circular plates of diameter D is given a charge Q.The magnitude of the force acting between plates is

A air filled parallel plate capacitor having circular plates of diameter D is given a charge Q.The magnitude of the force acting between plates is

A parallel plate capacitor has each plate of 0.06 m diameter separated by 0.05 cm of air. What is the capacitance of the capacitor? What would be the radius of a sphere having the same caapcitance?

A parallel plate capacitor consists of two thin conducting plates each of area A held parallel to each other at a suitable distance d. insulating medium is generally filled between the plates. Capacitance of the capacitor with vacuum as medium is

The plates of a paraller-plate capacitor are made of circular discs of radii 5.0 cm each .If the separation between the plates is 1.0 mm,What is the capacitance?