In Quantum physics, what is Kirchoff's Law?

quickfire

Kirchoff had two laws Kirchoff's first Law states that the current flowing into a junction in a circuit (or node) must equal the current flowing out of the junction. Kirchoff's 2nd Law states that for any closed loop path around a circuit the sum of the voltage gains and voltage drops equals zero. http://www.scientia.org/cadonline/Physics/circuits/kirchoff.ASP Feb 24 04, 6:22 AM

peasypod

Quick by name quick by nature huh? His law of emission also led him to the concept of a "black body" and "black body radiation", which in turn led Max Planck to introduce the idea of quanta into physics. [Feb 24 04 7:22 AM] peasypod writes: Kirchoff, Gustav Robert(1824-1887) At a given temperature, the rate of emission of electromagnetic energy by an object is equal to the rate at which the object absorbs electromagnetic energy of the same wavelength(frequency). This law was first stated by Gustav Kirchoff in 1859 and proved by him in 1861. This formed the begining of a black body and black boby radiation. Feb 24 04, 6:34 AM

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