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Kirchhoff's Current Law

In an electrical circuit, the current flows rationally as
electrical quantity. As the flow of current is considered as flow of
quantity, at any point in the circuit the total current enters, is exactly equal to
the total current leaves the point. The point
may be considered anywhere in the circuit Suppose the point is on the conductor through which the current is flowing, then the same current crosses the point which can
alternatively said that the current enters at the point and
same will leave the point. As we said the point may be anywhere on the circuit,
so it can also be a junction point in the circuit. So total quantity of current enters at the junction
point must be exactly equal to total quantity of current that leaves the junction.
This is the very basic thing about flowing of current and fortunately **Kirchhoff
Current law** says the same. The law is also known as **Kirchhoff First
Law** and
this law stated that, at any junction point in the electrical circuit, the
summation of all the branch currents is zero. If we consider all the currents
enter in the junction are considered as positive current, then convention of
all the branch currents leaving the junction are negative. Now if we add all
these positive and negative signed currents, obviously we will get result of zero

**"The algebraic sum of all currents entering and exiting a node must equal zero"**