A spherical capacitor consists of two concentric spherical conductors, held in position by suitable insulating supports (Fig). Show that the capacitance of a spherical capacitor is given by `C=(4piepsi_0r_1r_2)/(r_1-r_2)`

where `r_1 and r_2` are the radii of outer and inner spheres , respectively.

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.

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.

1If r and R be the radii of inner and outer circles respectively,then area of ring is

The capacitance of two concentric spherical shells of radii R_(1) and R_(2) (R_(2) gt R_(1)) is

A spherical capacitor consists of two concentric spherical conductors , the inner one of radius R_(1) maintained at potential V_(1) and the outer conductor of radius R_(2) at potential V_(2) . The potential at a point P at a distance x from the centre (where R_(2)gtxgtR_(1)) is

Three concentric spherical conductors A, B and C of radii R, 2R and 4R respectively. A and C is shorted and B is uniformly charged Potential at A is

Three concentric spherical conductors A, B and C of radii R, 2R and 4R respectively. A and C is shorted and B is uniformly charged . Potential at B is

A capacitor is formed of two concentric spherical conducting shells ofradii a and b . If the medium between the spherical shells has a dielectric constant K_(1) from radius a to r and K_(2) from radius r to b , find the capacitance of such a spherical capacitor shown in figure.