What is Kirchhoff's first law, Kirchhoff's point rule, Kirchhoff's junction rule (or nodal rule), and Kirchhoff's first rule?
Asked by Topperlearning User | 27th Apr, 2015, 02:22: PM
Kirchhoff’s first law
Kirchhoff's current rule states that the algebraic sum of the currents meeting at a junction in a closed circuit is zero.
Kirchhoff’s junction rule or point rule.
The current entering the junction is equal to the current leaving that junction.
Consider a junction O in an electrical circuit at which 5 conductors meets.
If I1, I2 , I3 , I4 , I5 be the currents flowing through them then according to the Kirchhoff's Law,
(-I1) + (-I2) + I3 + (-I4) + I5 = 0
-I1 + -I2 + I3 - I4 + I5 = 0
Answered by | 27th Apr, 2015, 04:22: PM
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