Two protons are drawn near each other . Will the potential energy of the system increases or decrease ? What will happen if a proton and an electron are drawn near each other ?

Explanation

Since the protons are positively charged particles, they will repal each other. To bring them nearer, work has to be done against the force of repulsion and this will be stored up in the system as potential energy. So the potential energy of the system will increase.
The potential energy decreases when a proton and an electron are brought nearer.