"The sum of the emf's and potential differences around a closed loop equals zero" is a consequence of:
A)Newton's third law
B)Ohm's law
C)Newton's second law
D)conservation of energy
E)conservation of charge

Question

Quizplus · Accepted Answer

This statement is a consequence of the conservation of energy. In a closed loop, the energy supplied by the emfs must be equal to the energy dissipated by the resistive elements. Therefore, the sum of the potential differences around the loop must be zero, since potential differences are related to energy.

"The Sum of the Emf's and Potential Differences Around a Closed