Kirchhoff's laws or Kirchhoff circuit rules
Kirchhoff's laws are followed from applying Ohm's law. This allow calculation of the currents, voltages and reisistences of electrical networks.
Kirchhoff' Current Law ; the sum of the current into a junction in the circuit equals the sum of the currents out of the same junction. Electric charge doesn't appear or disappear.
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Kirchhoff's Voltage Law (or Kirchhoff's Loop Rule) is a result of the electrostatic field being conservative. It states that the total voltage around a closed loop must equal the applied voltages.
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