Practice question · Multiple choice
Kirchhoff’s two laws are consequences of conservation principles. Why does each of the two rules follow from a conservation law?
Hints
- Ask what would happen physically if charge did accumulate at a junction.
- Then ask what a nonzero loop sum would let you build.
Show the answer
B. The junction rule is charge conservation, the loop rule energy
Why
Both are conservation laws in circuit clothing. Seeing that is what lets them be applied confidently to circuits that look nothing like the textbook examples.
Practise Kirchhoff's Laws and Circuit Analysis
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