Two protons are brought together. How will potential energy of the system alter?

What is potential energy?

In bringing an electron towards another electrons, the electrostatic potential energy of the system

Three charges -q, Q and -q are placed at equal distances on a striaght line. If the potential energy of the system of three charges is zero, then what is the ratio of Q:q?

If one of the two electrons of a H_2 molecule is removed, we get a hydrogen molecular ion H_2^+ . In the ground state of an H_2^+ , the two protons are separated by roughly 1.5 overset@A . and the electron is roughly 1 A from each proton. Determine the potential energy of the system. Specify your choice of the zero of potential energy.

Two point charges 4Q and Q are separated by a distance of 1 m in air. Also calculate the electrostatic potential energy of the system of two charges, taking Q = 2 xx 10^-7C .

Two points charges q_1 = 10 xx 10^-8 c and q_2 = -2 xx 10^-8 C are separated by a distance of 60cm in air. Also calulate the electrostatic potential energy of the system.

When the separation between two charges is increased, the electric potential energy of the system

Two points charges +10muC and -10muC are separated by a distance of 40 cm in air. Calculate the electrostatic potential energy of the system, assuming the zero of the potential energy to be at infinity.

Two point charges q_1 and q_2 are kept at a distance of r_(12) in air. Deduce the expression for the electrostatic potential energy of the system.