The electrostatic force on a small sphere of charge 0.4 µC due to another small sphere of charge –0.8 µC in air is 0.2 N. (a) What is the distance between the two spheres? (b) What is the force on the second sphere due to the first?

The electrostatic force on a small sphere of charge 0.4 muC due to another small sphere of charge -0.8 mu C in air 0.2 N (i) What is the distance between the two spheres? (ii) What is the force on the second sphere due to the first ?

The electrostatic attracting froce on a small sphere of charge 0.2muC due to another small sphere of charge -0.4muC in air is 0.4N. The distance between the two spheres is

Consider two solid dielectric spheres of radius a, separated by a distance R(R gt gt a) . One of the spheres has a charge q, and the other is neutral (see figure). We double the distance between two sphere. How much charge should reside on the first sphere now so that the force between the spheres remains the same ?

The force of attractions between two charges 8muC and -4muC is 0.2 N. Find the distance of separation.

A uniformly charged conducting sphere of 2.4m diameter has a surface density of 80.0 mu C//m^(2) . (a) Find the charge on the sphere (b) What is the total electric flux leaving the surface of the sphere ?

A uniformly charged conducting sphere of 2.4m diameter has a surface density of 80.0 mu C//m^(2) . (a) Find the charge on the sphere (b) What is the total electric flux leaving the surface of the sphere ?

Indentical isolated conduction sphers 1 and 2 have equal charges and are separated by a distance that is large compared with their diameters (Fig.a). The electrostatic force acting on spkhere 2 due to sphere 1 is F. Suppose now that a third identical sphere 3, having an insulation handle and initially neutral, is touched first to sphere 1 (Fig. b), then to sphere 2 (Fig. c), and dinally removed (Fig. d). The electrostatic force that now acts on sphere 2 has magnitude F'. What is the (F')/(F) ?

A small conducting sphere is hanged by an insulating thread between the plates of a parallel plate capacitor as shown in figure. The net force on the sphere is

Consider two concentric conducting spheres. The outer sphere is hollow and initially has a charge -7Q on it. The inner sphere is solid and has a charge +2Q on it. a. How much charge is on the outer surface and inner surface of the outer sphere. b. If a wire is connected between the inner and outer sphere, after electrostatic equilibrium is established how much total charge is on the outer sphere? How much charge is on the outer surface and inner surface of the outer sphere? Does the electric field at the surface of the inside sphere change when the wire is connected? c. We return to original condition in (a). We now connect the outer sphere to ground with a wire and then disconnect it. How much total charge will be on the outer sphere? How much charge will be on the inner surface and outer surface of the outer sphere?

Figure shows a uniformly charged sphere of radius R and total charge Q. A point charge q is situated outside the sphere at a distance r from centre of sphere. Find out the following : (i) Force acting on the point charge q due to the sphere. (ii) Force acting on the sphere due to the point charge.