Q. Kirchhoff's first and second laws for electrical circuits are consequences of :
A) conservation of energy
B) conservation of electric charge and energy respectively
C) conservation of electric charge
D) conservation of energy and electric charge respectively
Explanation
[Solution from source] Kirchhoff's junction law (sum of currents at a node is zero) expresses conservation of charge. The loop law (sum of potential changes round a loop is zero) expresses conservation of energy. The reverse pairing swaps the two laws. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.