Kirchhoff’s Laws


Introduction Many of the electrical circuits are complex in nature and the computations required to find the unknown quantities in such circuits, using simple ohm’s law and series/parallel combination simplifying methods is not possible. Therefore, in order to simplify these circuits Kirchhoff’s laws are used. These laws are the fundamental…
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Ohm’s Law and Electric Power

Ohms Law for AC circuits

For analysing DC circuits , generally we use different methods such as ohm’s law, network theorems and other circuit simplification tools. A DC circuit analysis is performed mainly to determine the unknown quantities such as voltage, current, resistance and power which are allied with one or more elements of an…
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Electrical and Electronic Schematic Symbols


Electrical or electronic circuits are virtually represented by circuit diagrams. There are some standard symbols to represent the components in a circuits. This article gives some of the frequently used symbols for drawing the circuits.

DC Motor


NEXT – SOUND TRANSDUCERS Introduction Almost every mechanical movement that we see today is accomplished by an electric motor. An electric motor takes electrical energy and produces mechanical energy. Electric motors come in various ratings and sizes. Some applications of large electric motors include elevators, rolling mills and electric trains….
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Diode Testing

Ohmmeter Mode Testing using DMM 2

PREVIOUS – DIODE APPLICATIONS GO TO FIRST – SEMICONDUCTOR DIODES Introduction The first and foremost thing before start developing or troubleshooting the electronic circuits or projects is that one must require a sound knowledge on basic electronic components and their working if they are placed in energized circuits. The complete…
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Diode Applications

Clamping circuit

PREVIOUS – BYPASS DIODES IN SOLAR PANELS NEXT – HOW TO TEST A DIODE Introduction As a simplest semiconductor component, diode has a wide variety of applications in modern electronic systems. Various electronic and electrical circuits use this component as an essential device to produce the required outcome.  Diode allows…
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DC Circuits Basics

7.Electrical parameter calculations

PREVIOUS – ELECTRICAL SAFETY TIPS Introduction A circuit that can be AC or DC is the combination of active elements (power supply sources) and passive elements (resistors, capacitors and inductors). Thus, the circuit theory or analysis helps to understand the circuit behavior or characteristics by finding out the voltages and…
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Darlington Transistor

Darlington Transistor as Amplifier

PREVIOUS – FET AS SWITCH GO TO FIRST – INTRODUCTION TO TRANSISTORS Introduction to Darlington Transistor A Darlington transistor or simply Darlington pair is mainly used to offer a very high current gain even with low base current. Darlington configuration was invented by Sidney Darlington in the year of 1953….
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FET as a Switch

MOSFET as a Switch Circuit

PREVIOUS – TRANSISTOR AS SWITCH NEXT – DARLINGTON TRANSISTOR Introduction Wide variety of advantages such as high input impedance, simple fabrication, simple operations, etc. makes the Field Effect Transistors (FETs) to be used popularly in different applications particularly in integrated circuit systems. FETs are the 2nd generation transistors after the…
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