State Kirchoff Loop Law and explain.

Explanation

Let us apply loop law to a circuit as below. for the loop ACDBA `-V_(2)+I_(2)R_(2)-I_(1)R_(1)+V_(1)=0`
for the loop EFDCE `-(I_(1)+I_(2))R_(3)-I_(2)R_(2)+V_(2)=0`
for the loop EFBAE `-(I_(1)+I_(2))R_(3)-I_(1)R_(1)+V_(1)=0`