by Alka Verma | Sep 20, 2016 | General
LDR is a special kind of resistance, which varies according to the light falling on it. An LDR is a kind of light sensor and is also called photoresistor. It is made up of photo resistive material Cadmium Sulphide. LDR’s resistance varies with the strength of light...
by Alka Verma | Sep 16, 2016 | General
The transistor was invented by John Bardeen, Walter Brattain and William Shockley in 1947. The advent of transistor revolutionized the electronics world. Slowly and steadily, transistors became the basic building blocks of modern electronic circuits. Transistors are...
by Alka Verma | Aug 28, 2016 | General
We are surrounded by different kinds of sounds all the time. For example: the sounds produced by musical instruments, humming of birds, or a wailing child. Speaker is a vital electronic component which produces sound. It is an electromechanical device which converts...
by Alka Verma | Aug 22, 2016 | General
LED which looks like a small bulb is a special kind of electronic component called diode. Full form of LED is light emitting diode. Diode is a semi conductor device which allows the current to pass through it in one direction only. If the diode is connected properly,...
by Alka Verma | Aug 9, 2016 | General
Capacitors are used extensively in electronic gadgets like TV, Radio, Camera etc. Tuning of a particular station in radio is done through variable Capacitors. They are available in various types. Capacitor can be classified as Polarized and non polarized capacitor. A...
by Alka Verma | Aug 3, 2016 | General
Capacitor is one of the passive components used in electronic circuits. It acts as a temporary battery. Its main function is to store electricity and release it whenever required. They are also called condensers. Capacitors have a property called capacitance, which...
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