Kirchhoff’s law of current and voltage (KCL and KVL)

We already know that the Ohm’s law is a fundamental law in current electricity. Scientist Kirchhoff has given another two fundamental rules of electricity. With the help of these two rules one can easily find the current, voltage and resistance in an electrical circuit by using nodal analysis and loop analysis methods. In this article, … Read more

Formula for Ohm’s law of current and Voltage with graph

There are two basic laws of current electricity – one is Ohm’s law and another one is Kirchhoff’s law. Ohm’s law of current electricity gives the simplest relation between the electric current and voltage across a resistance. Kirchhoff’s laws tell us how to calculate electric current and voltage at a junction point or in a … Read more

Verification of Ohm’s Law experiment with data and graph

Ohm’s Law of current electricity is one of the popular law in science. This practical verification of Ohm’s law is very important for the practical or project purpose. My students usually ask me to demonstrate an experiment to verify Ohm’s law. In this article, we are going to presents lab-based set up for the verification … Read more

Electrical components used in electronic & electric circuit

An electrical circuit consists of some electrical components and a source of voltage or current. These circuit components perform all the activities in a circuit. We need to know the function of every circuit component to use these properly in a circuit. Examples of some electrical components are resistors, capacitors, inductors, diodes, transistors etc. In … Read more