Electrostatic Potential Energy

Electrostatics Potential Energy||Conservation OF Mechanical Energy || Electric Potential||Relation Between E and V|| Equi Potential Surface

Match the following : {:(,"Column-1",," Column-2"),("(A)","Electrostatic potential energy",,"(P) Positive"),("(B)","Gravitational potential energy",,"(Q) Negative"),("(C)","Elastic potential energy",,"(R) Zero"),("(D)","Magnetic potential energy",,"(S) Not defined"):}

Assertion : When two positive point charges move away from each other, then their electrostatic potential energy decreases. Reason : Change in potential energy between two points is equal to the work done by electrostatic forces.

Show that the energy of hydrogen atom in the ground state is E= -(1)/(8pi epsi_(0)) e^(2)/r [Hint: Energy in the gound state = kinetic energy of electron in the first orbit + electrostatic potential energy of the electron.]

Two point charges 20xx10^(-6)C and -4xx10^(-6)C are separated by a distance of 50cm in air, Find (i) the point on line joining the charges, where the electrostatic potential is zero (ii) Also, Calculate the electrostatic potential energy of the system.

Four equal charges of magnitudes q each are placed at four corners of a square with its centre at origin and lying in y-z plane. Aa fifth charge +Q is moved along x-axis. The electrostatic potential energy (U) varies on x-axis as