Kirchhoff's first rule is a manifestation of law of enervation of
Correct answer: A. Charge
- A. Charge
- B. Mass
- C. Energy
- D. None of these
Explanation
Kirchhoff's first rule is a manifestation of the law of conservation of electric charge, not the law of conservation of mass or energy. It asserts that the total charge in a closed system remains constant over time, meaning that charge cannot be created or destroyed, only transferred or redistributed within the system. Kirchhoff's first rule reflects this principle by ensuring that the total charge entering a junction in an electrical circuit is equal to the total charge leaving the junction.
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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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