[" There are two conducting spheres of radius a and "b(b>a)" carrying equal and opposite charges.They "],[" are placed at a separation "d(>>>a" and "b" ).The capacitance of system is "],[qquad [" o) "," (D) "4 pi varepsilon_(0)],[" (A) "(4 pi varepsilon_(0))/(a-b-d)," (B) "(4 pi varepsilon_(0))/(1-(1)/(L)-(1)/(L))," (C) "(4 pi varepsilon_(0))/(L-(1)/(L))]]

There are two conducting spheres of radius a and b (b gt a) carrying equal and opposite charges. They are placed at a separation d ( gt gt gt a and b). The capacitance of system is

There are two conducting spheres of radius a and b (b gt a) carrying equal and opposite charges. They are placed at a separation d ( gt gt gt a and b). The capacitance of system is

Two metal spheres of radius r have centers at a distance d apart in air. Find the capacitance of the system.

Two metal spheres of radius r have centers at a distance d apart in air. Find the capacitance of the system.

Two metal spheres of radii a and b are connected by a thin wire. Their separation is very large compared to their dimensions. The capacitance of this system is

Two metal spheres of radii a and b are connected by a thin wire. Their separation is very large compared to their dimensions. The capacitance of this system is

Two metal spheres of radii a and b are connected by a thin wire. Their separation is very large compared to their dimensions. The capacitance of this system is

Two charges,each equal to 2C can be placed so that the force between them equals to the weight of an object of mass 1kg .The distance between them is (take "g=10m/s^(2)" ) (10 pi varepsilon_(0))^(1/2), [1/(10 pi varepsilon_(0))^(1/2)], [1/10 pi varepsilon_(0)], [10 pi varepsilon_(0)]

A charge q_(1) is placed at the centre of a spherical conducting shell of radius "R" .Conducting shell has a total charge q_(2) .Electrostatic potential energy of the system is (A) (q_(1)^(2)+2q_(1)q_(2))/(8 pi varepsilon_(0)R) (B) (q_(2)^(2)+2q_(1)q_(2))/(8 pi varepsilon_(0)R) (C) (q_(1)^(2)+q_(1)q_(2))/(8 pi varepsilon_(0)R) (D) (q_(2)^(2)+q_(1)q_(2))/(8 pi varepsilon_(0)R)