What is the potential energy of the equal positive point charges of `1 mu C` each held `1 m` apart in air ?

What is the potential energy of the equal positive point charges of 1muC each, held 2m apart in air-

What is the potential energy of two equal negative point charges 2 muC each held 1m apart in air ?

Potential energy of two equal negative point charges 2muC each held 1 m apart in air is

The potential energy of system of two equal negative point charges of 2 mu C each held lm apart in air is ............... ( k = 9 xx 10^9 SI unit )

Potentia energy of two equal negative point charges of magnitude 2 mu C placed 1 m apart in air is :

Potential energy of two equal negative point charges 2mC held 1 m apart in air is

The electrostatic potential energy of two point charges, 1muC each, placed 1 metre apart in air is :

Two charges q_(1) = 3.0 mu C and q_(2) = - 4.0 mu C initiallly are separated by a distance r_(0) = 2.0 cm . An external agent moves the charges until they are r_(f) = 5.0 cm apart. (i) How much work is done by the electric field in moving the charges from r_(0) to r_(f) ? Is the work positive or negative ? (ii) How much work is donw by the external aganet in moving the charges from r_(0) to r_(f) ? Is the work positive or negative ? (iii) What is the positive energy of the initial state where the charge are r_(0) =2.0 cm apart ? (iv) What is the potential energy of the final state where the charges are r_(f)= 5.0cm apart ? (v) What is the change in potential energy from the initial state to the final state ?