Kirchhoff's first law is manifestation of:
Correct answer: D. Law of conservation of charge
- A. Law of conservation of momentum
- B. Law of conservation mass
- C. Law of conservation of energy
- D. Law of conservation of charge
Explanation
Kirchhoff's first law states that the algebraic sum of current flowing into a junction is zero. This rule corresponds to conservation of charge which states that total charge in a closed system remains constant because current is the rate of flow of charge.
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About Current Electricity
Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
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