Question

What is Kirchhoff Rules? Apply the concept of electrical potential to explain.

Answer 1

first Kirchhoff's rule (current law) states that current entering  into a junction must be equal to current flowing through the junction. This is  charge conservation..

second Kirchhoff's rule (voltage law) states that sum of all the electric potential differences around a loop is zero.

the energy given by the battery is used by all the components in a loop. it means the energy can not enter the loop and leaving the loop. this rule is conservation of energy.