Difference between Kirchhoff’s 1st law and Kirchhoff’s 2nd law

Difference between Kirchhoff’s 1st law and Kirchhoff’s 2nd law

Kirchhoff’s laws are basically used to obtain the currents and voltages for any electrical circuits. There are two type of Kirchhoff’s  laws one is Kirchhoff’s  current law which is our 1st Kirchhoff’s  law and another is Kirchhoff’s voltage which is our Kirchhoff’s  2nd law. Kirchhoff’s  1st is based on conservation of charge and Kirchhoff’s  2nd law is based on conservation of energy. The good thing about it is that we can use direct current or indirect current for obtaining current and voltages. It helps to do calculation of unknown voltages and current easily. The Kirchhoff’s laws helps us to study that how current flow and the voltages vary in the circuit.

    Kirchhoff’s 1st law

Kirchhoff’s 2nd law

1) Kirchhoff’s 1st law state that the sum of current entering to the junction is equal to sum of current leaving the junction. It is a consequence of charge convergence.

2) The total voltage in a closed loop of circuit is expressed as summation of v = 0.

3) Kirchhoff’s 1st law is also known as junction law or Kirchhoffs current law.

4) Kirchhoff’s1stlaw is applicable for both open as well as closed loop.

5) ∑ I = 0.

1) Kirchhoff’s 2nd law state that the sum of all voltages around the closed loop in any circuit must be equal to zero. This is conservation if energy.

2) The total current and resistance in a closed loop is equals to 0.

3) Kirchhoff’s2ndlawis also known as loop law or Kirchhoff’s voltage law.

4) Kirchhoff’s 2nd law is only applicable for closed loop.

5) ∑ I R = 0.

Updated: January 25, 2022 — 4:28 pm

Leave a Reply

Your email address will not be published. Required fields are marked *