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Kirchhoff's two rules together encode the conservation of which two quantities?
AHeat and light
BForce and torque
CEnergy and charge
DMass and momentum
Answer & Solution
Correct answer: C. Energy and charge
1. Each rule carries one conservation law.
2. Kirchhoff's loop rule describes conservation of energy in electrical circuits.
3. The junction rule applies charge conservation as conservation of current.
4. It equates currents entering a junction to currents leaving it.
5. So the two rules encode energy and charge conservation.
_Source: OpenStax College Physics for AP Courses 2e (CC BY 4.0), Ch 21 'Circuits and DC Instruments', sections 21.1-21.6_
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