According to Kirchoff's current law,:

Question

Question

This question was previously asked in

RRB ALP Mechanic Radio & TV 23 Jan 2019 Official Paper (Shift 3)

the sum of the currents entering a node = the sum of the currents leaving the node
the sum of the potential differences across all elements = 0
the total current is directly proportional to the applied voltage
the sum total of all the currents in a loop = 0

Answer 1

Concept:

Kirchhoff’s law is applicable to the junction in a network. It is not applicable for time-varying magnetic fields.

Kirchhoff’s Current Law (KCL):

This law is also known as the junction rule or current law (KCL). According to it the algebraic sum of currents meeting at a junction is zero i.e. Σ i = 0.

In a circuit, at any junction, the sum of the currents entering the junction must be equal to the sum of the currents leaving the junction i.e., i1 + i3 = i2 + i4
This law is simply a statement of “conservation of charge” as if the current reaching a junction is not equal to the current leaving the junction, the charge will not be conserved.