Kirchoff's Second Law

In any circuit the sum of the electromotive forces is equal to the sum of the potential differences around a closed loop.A closed loop is a single path the current can take from the cell or power source to the component and back again.Kirchoff's second law is the law of conservation of energy applied to electrical circuits.The total energy transferred to the charge carriers from the power source or cell is equal to the total energy transferred from the charge carriers to the components.