what's the application of Kirchhof's second law in real life.Give answer with example.
2006-08-18 08:10:59 · 7 answers · asked by star123 2 in Science & Mathematics ➔ Physics
Kirchoff's laws (which I have never heard referred to by number) state that the total current entering a node is zero, and the total voltage around any loop in a network is also zero. Both of these are used all the time. Example (from real life): There are ten fluourescent light fixtures on a circuit; each draws one ampere. It is desired to add six more such fixtures. The circuit breaker is rated at 20 amps, and the switch at 15 amps. Can the addition be made? Answer: No; a second circuit is required: the switch would be carrying 16 amps, which exceeds its rating. This is an example of the current law, with the node being one pole of the switch.
2006-08-18 08:23:21 · answer #1 · answered by Anonymous · 1⤊ 1⤋
It forms the basis for circuit design and analysis. Electrical engineering students learn this on the first day of their circuits course (or maybe in a physics class as well).
In real life, there are so many electric circuits it boggles the mind... and they all must obey Kirchoff's voltage law.
2006-08-18 15:24:03 · answer #2 · answered by Ubi 5 · 0⤊ 0⤋
u mean in electric circuits
i ve never heard it in number
LOOP LAW
start from any point on a continuous circuit...the total potential of the entire circular range is 0
JUNCTION LAW
the total current entering a junction in a circuit is equal to the total current leaving
I HOPE U R NOT REFERRING TO THERMODYNAMICS
2006-08-18 17:58:55 · answer #3 · answered by PIKACHU™ 3 · 0⤊ 0⤋
Application: the innards of the computer you are using.
2006-08-18 17:01:23 · answer #4 · answered by Benjamin N 4 · 0⤊ 0⤋
In real life, I don't think it's of any use, execpt for electric sistems, for example when you connect some buldings to the electric sistem.
2006-08-18 15:20:23 · answer #5 · answered by the_clown 2 · 0⤊ 1⤋
It can be used while designing the circuit.
2006-08-18 16:28:27 · answer #6 · answered by techno_geek 2 · 0⤊ 0⤋
idk
2006-08-18 15:16:05 · answer #7 · answered by amanda =) 2 · 0⤊ 1⤋