Two large conducting spheres carrying charges `Q_1` and `Q_2` are brought close to each other. Is the magnitude of the force between them exactly given by `(Q_1Q_2) /(4 pi epsilon_0r^2)` where r is the distance between their centres ?

Define surface density of electric charge. Two large conducting spheres carrying charges Q_(1) and Q_(2) are brought close to each other. Is the magnitude of the electrostatic force between them exactly given by (Q_(1)Q_(2))/(4 pi epsilon_(0)r^(2)) where r is the distance betwen their centres?

Two large conducting sphere carrying charges Q_(1) and Q_(2) are brought close to each other. Is the magnitude of the electrostatic force between them exactly given by Q_(1) Q_(2) //4pi in_(0) r^(2) , where r is the distance between their centres ?

Two point charges q_1 and q_2 are such that q_1q_2 lt 0 . What is the nature of the force acting between the two charges?

Two charged conducting spheres of radii r_1 and r_2 connected to each other by a wire. Find the ratio of electric fields at the surface of the two spheres.

Two point charges each of magnitude +q are placed at a distance r from each other. Draw the lines of force in this case.

An isolated conducting sphere of radius r is given a charge +Q. This charge may be assumed to act as a point charge situated at the centre of the sphere, as shown below in Fig.-1 | Fig.2 shows the variation with distance from the centre of the sphere, the potential V due to the charge +Q. Using the above relation, sketch a graph to show the variation with distance xx of the electric field E due to charge +Q.

Two identical spheres, each of mass m, are suspended from a point by threads. Each sphere carries a charge q. If the angle between the threads is very small, prove that in equilibrium, the distance between the centres of the two spheres is, x=((q^(2)l)/(2pi epsilon_(0)mg))^((1)/(3))

A conducting sphere of radius R is given a charge Q. The electric potential and the electric field at the centre of the sphere respectively are

A conducting sphere of radius R is given a charge Q. The electric potential and the electric field at the centre of the sphere respectively are