Two equally charged identical metal spheres A and b repel each other with a fore `2.0 xx 10^-5 N`. Another identical uncharged sphere C is touched to A and the nplaced at the md point between A and B. What is the net electric force on C?

Two equal charges placed in air and separated by a distance of 2 m repel each other with a force of 10^-4 N. Calculate the magnitude of either of the charges.

Two points charges of +3muC and +8muC repel each other with a force of 40 N . A charge of -5muC is added to each of them. Now, the force will be

Two point charges of +2 muC and + 6 muC repel each other with a force of 12 N. If each is given additional charge of -4 muC , what will be the new force ?

Three equally charged objects are located as shown in the figure the electric force exerted by the object A on B is 3.0 xx 10^-6N . What is the net electric force on B?

The distance between two equal balls having unlike charges is 2cm. The radii of the balls are much less than the distance between them. The balls attract each other with a force of 36xx10^(-5) N. After the ball have been connected by a wire and latter has been removed, the balls repel each other with a force of 20. 25xx10^(-5)N. Determine the original charges on the balls

Two charges of +1C and +2C separated by a distance of 1 m, repel each other with a force of vecF_1 and vecF_2 respectively. What is the ratio of vecF_1 and vecF_2 ?

Two small charged metal sphere A and B are situated in a vaccum. The distance between the centres of the spheres is 12.0 cm, as shown in the fig. The charge on each sphere may be assumed to be a point charge at the centre of the sphere. Point P is a movable point that lies on the line joining the centres of the sphere and is distance x fromt he centre of sphere A. The variation with distance x fo the electric field strength E at point P as shown in the figure. State the evidence provided by in the fig for the statement that the spheres are conductors, the charges on the spheres are either both positive or both negative.

Two identical plane metallic surfaces A and B are parallel to each other in air separated by a distance of 1 cm as shown in the fig. Surface A is given a postive potential 10 V and the outer surface of B is earthend What is the magnitude and direction of the uniform electric field between points Y and Z?

Two small charged metal sphere A and B are situated in a vaccum. The distance between the centres of the spheres is 12.0 cm, as shown in the fig. The charge on each sphere may be assumed to be a point charge at the centre of the sphere. Point P is a movable point that lies on the line joining the centres of the sphere and is distance x fromt he centre of sphere A. The variation with distance x fo the electric field strength E at point P as shown in the figure. Use fig to state and explain the distance x at which the rate of change of potential with distance is maximum and minimum.