Basic concepts of Electrical Engineering and Circuit analysis
Basic concepts of Electrical Engineering and Circuit analysis
Basic circuit elements
The elements which deliver power to the circuit are known as active elements. Examples – Voltage and current sources.
The elements which dissipate or store power in the circuit are known as passive elements. Examples – Resistance, Inductance, Capacitance.
Note: Inductance and Capacitance are also known as reactive elements as they can both deliver and store power in the circuit.
Electrical resistance is the property of a material by virtue of which it opposes the flow of electrons through the materials.
Unit of Resistance: ohm
Inductance is the property of a material b virtue of which it opposes any change of magnitude or direction of electric current passing through the conductor.
Unit of Inductance: Henry
Capacitance is the capability of an element to store electric charge within it. Capacitance is a measure of charge per unit voltage that can be stored in an element.
Unit of Capacitance: Farad
Ohm’s law states that the current flowing through a conductor is directly proportional to the potential difference across its ends, assuming the physical conditions to be constant.
Reference books for better understanding
Circuit theory by Abhijit Chakrabarti: https://amzn.to/3gnrht3
Basic Electrical Engineering by S Chand: https://amzn.to/3gnrht3
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