Question
Question: State and explain Kirchhoff’s Laws in the current electricity....
State and explain Kirchhoff’s Laws in the current electricity.
Solution
Hint: Junction is any point in the circuit where the current can split. Use sign concentrations to find KVL and KCL. First law deals with the sum of current coming and leaving at a junction. Second law deals with the sum of potential differences plus the algebraic sum of e.m.f is equal to zero.
Complete step-by-step answer:
Kirchhoff’s laws are generally used to analyse the electrical circuit that is to calculate the current and resistance in the network. Kirchhoff's law Voltage law and current law are derived on the basis of principle of conservation of energy. Kirchhoff’s law is of two type:
1. Kirchhoff’s Current Law(KCL)
Statement: The algebraic sum of current entering and leaving at any junction in a circuit is zero.
i.e.∑i=0
Consider a surface as containing the conductor meeting at a point P as shown in figure (a). Now, taking the current flowing away from the junction as positive and current flowing towards the junction as negative, then