Capacitance of Spherical Capacitor

Spherical Capacitors

(a) Find the capacitance of spherical capacitor having concentric shells of radii a a and b (bgta) . The space between the shells is completely filled by a dielectric of constant k . (b) Find the capacitance if dielectric is filled upto an intermediate radius c(a lt c lt b) between the shells.

Write down the expression for the capacitance of a spherical capacitor.

Show that the capacitance of a spherical capacitor is (4piepsi_(0)b^(2))/((b-a)) when the outer sphere is charged and the inner earthed.

Calculate the capacitance of a spherical capacitor consisting of two concentric spheres of radius 0.50m, 0.60m. The material filled in the space between the two spheres has a dielectric constant of 6.

Find the capacitance of a spherical capacitor whose electrodes have radii R_(1) and R_(2) gt R_(1) and which is filled with istropic dielectric whose permittivity varies as espilon = a//r , where a is a constant , and r is the distance from the centre of the capacitor.

Capacitance OF a Spherical capacitor||Capacitance OF a Cylindrical capacitor||Force between plates OF a Capacitor||Energy stored in a Capacitor

The stratosphere acts as a conducting layer for the earth. If the stratosphere exends beyond 50 km from the surface of earth, then calculate the capacitance of the spherical capacitor formed between strasphere and earth's surface. Take radius of earth of as 6400 km .

A sperical capacitor consists of two concentric spherical conductors, held in position by suitable insulating supports. Show that the capacitance of this spherical capacitor is given by C = (4pi in_(0) r_(1) r_(2))/(r_(1) - r_(2)) , Where r_(1) and r_(2) are radill of outer and inner spheres respectively.