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 Symbol of Resistance 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 Symbol of Inductance 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 store