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Which pair correctly matches the law with the physical conservation principle behind it?
AKCL $\rightarrow$ energy conservation; KVL $\rightarrow$ charge conservation
BKCL $\rightarrow$ charge conservation; KVL $\rightarrow$ energy conservation
CKCL $\rightarrow$ momentum conservation; KVL $\rightarrow$ mass conservation
DKCL $\rightarrow$ power conservation; KVL $\rightarrow$ current conservation
Answer & Solution
Correct answer: B. KCL $\rightarrow$ charge conservation; KVL $\rightarrow$ energy conservation
KCL comes from conservation of charge at a junction, while KVL comes from conservation of energy around a closed loop. The other pairings mismatch the physical basis of the two laws.