Circuit current and voltage follow laws {Kirchoff's laws} {Kirchoff laws}. Kirchoff's laws apply to circuit steady state. Transiently, Kirchoff's laws can break.
At circuit points, current coming in equals current going out. If current flowing in did not equal current flowing out, charge builds or falls at point and repels or attracts incoming charges, to make net charge return to zero.
Around circuit loops, voltages add to zero. If voltages around loop do not add to zero, extra voltage sends more charges to low-voltage point and so makes sum of voltages become zero again.
Physical Sciences>Physics>Electromagnetism>Circuit
5-Physics-Electromagnetism-Circuit
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Date Modified: 2022.0224