Zero Reference Level in Electronics Engineering: Zero Reference Level – In order to avoid errors in the measurement of different voltages in an electronic circuit, it is imperative to select some common point, known as reference, zero potential or datum point and measure all circuit voltages (whether positive or negative) with respect to this point. […]
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What is Capacitor in Electronics?: What is Capacitor in Electronics? – Capacitor is a two-terminal element that has the capability of charge storage and, consequently, energy storage. The stored energy can be fully retrieved. The current through the capacitor is proportional to the derivative of voltage across it and is given by expression where C
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What is Inductor in Electronics? An inductor has been defined as a physical device which is capable of storing energy by virtue of a current flowing through it. An Inductor in Electronics is a circuit component which opposes the change of current flowing through it and induces a voltage when the current flowing through it
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What is Resistor in Electronics? What is Resistor in Electronics? – Resistance is a dissipative element, which converts electrical energy into heat, when the current flows through it in any direction. The process of energy conversion is irreversible. The circuit element used to represent energy dissipation is most commonly described by requiring the voltage across
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What is Active Components and Passive Components? All electronic circuits, however complicated, contain a few basic components (generally speaking, only five)—three passive and two active components. Though passive components by themselves are not capable of amplifying or processing an electrical signal but these components are as important in an electronic circuit, as active ones (such
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What is Voltage and Current? There are two quantities that we like to keep track of in electronic circuits : voltage and current. These are usually changing with time; otherwise nothing interesting in happening. Voltage (abbreviated as V or sometimes E) between two points is the cost in energy (work done) required to move a
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Types of Power Supply in Electronics: There are two types of power supply viz. dc supply and ac supply. The voltage or current available from batteries or solar cells is direct in the sense that the polarity remains the same. Such sources are called direct current sources. A plot of output of such sources with
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