Two point charges of 10 C each are kept at a distance of 3 m in vacuum. Calculate their electrostatic potential energy.

Two point charges 4 mu C and -2 mu C are separated by a distance of 1m in air. Calculate at what point on the line joining the two charges is the electric potential zero ?

Three equal charges of 5.0 muC each are placed at the three vertices of an equilateral triangle of side 5.0cm each. Calculate the electrostatic potential energy of the system of chages.

The side of the cube is 'l' and point charges are kept at each corner as shown in diagram. Interaction electrostatic potential energy of all the charges is:

Find out the points on the line joining two charges +qand -3q (kept at as distance of 1.0 m ) where electric potential is zero.

Two spheres each of mass 104 kg are separated by a distance of 100 m. What will be the gravitationel potential energy of the system?

Two point charges 4Q, Q are separated by 1m in air. At what point on the line joining the charges is the electric field intensity zero ? Also calculate the electrostatic potential energy of the system of charges, taking the value of charge, Q=2xx10^(-7)C .

A charge of 1 mu C is divided into parts such that their charges are in the ratio of 2: 3. These two charges are kept at a distance 1 m apart in vacuum. Then, the electric force between them (in N) is

Three particles, each having a charge of 10 mu C are placed at the coners of an equilateral triangle of side 10 cm . The electrostatic potential energy of the system is (Given (1)/(4pi epsilon_(0)) = 9 xx 10^(9)N-m^(2)//C^(2))

Two point charges q each are fixed at (a,0) and (-a,0). A third charge Q is placed at origin. Electrons potential energy of the system will

Three point charges Q_(1)=25muC,Q_(2)=50muC and Q_(3)=100muC , are kept at the corners A, B and C respectively of an equilateral triangle ABC having each side equal to 7.5 m. Calculate the total electrostatic potential energy of the system.