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Course Content


Kirchhoff’s current law (or in short: KCL) is a classical model for describing the behavior of electric circuits. It deals with currents in resistors and capacitors at any point where the circuit is connected to a source of potential difference (voltage or voltage drop). The KCL model has been used since 1820. Kirchhoff’s Voltage law is perhaps one of the most important laws in electrical engineering. It is defined as the algebraic sum of voltages across any closed path of a network that is transverse in a single direction. We will look at Kirchhoff’s Law and how it can be applied to networks with different topologies.

Kirchhoff’s current law is a result of this circuit that will be discussed in detail. This current law explains the relationship between voltage and current present in a closed circuit. Kirchhoff’s Law states that if a closed circuit is given a voltage source, there will be at least one other source present which causes voltage to flow around the closed circuit.

It states that the sum of all possible paths in a network is zero. This path sum is obtained by taking any closed path in the network and adding its potential drop and emf along it. OR The sum of the emfs in a loop of a circuit is equal to the product of the current and the resistance in it.

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