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In general, different types of electrical and electronic components such as transistors, integrated circuits, microcontrollers, transformers, regulators, motors, interfacing devices, modules, and basic components are used (as per requirement) to design different electrical and electronics projects. It is essential to know about the working of each component before using it practically in circuit applications. It is very challenging to discuss in detail about all the important components of electronics in a single article. Hence, let us discuss in detail about junction field effect transistor, JFET characteristics, and its working. But, primarily we must know what are field effect transistors. Field Effect Transistors In solid state electronics, a revolutionary change was done with the invention of the transistor, and is obtained from the words transfer resistor. From the name itself, we can understand the way of functioning of transistor i.e., transfer resistor. The transistors are cla...

R.C Coupled Amplifier The below fig shows a two stage R.C coupled amplifier. Here the first stage is connected to the second stage through the coupling capacitor C C and resistor R C . Therefore, this amplifier is called as RC coupled amplifier. The resistor R 1 , R 2 from the self bias and R E form stabilization network. The emitter bypass capacitor offers low reactance path to the signal. This method of coupling is widely used in cascade amplifier stages. Working: When the input voltage is applied to the base of the first transistor through a input capacitor C IN , it appearing the amplified form across its collector load R C . The output of the first stage is given to the vase of the next stage through coupling capacitor C C . The second stage does further amplification of the signal. The coupling capacitor here, helps in blocking the flow of d.c. components from first stage to the second stage. Thus the biasing of the second stage will not disturbed. The coupling capacitor have so...