2020-09-27

Electrical Knowledge

Electrical and Electronic Concepts

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Capacitor

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Electrolytic capacitor:

Electrolytic capacitor uses electrolyte to achieve large value of capacitance than the other capacitor types.
Electrolytic capacitor always connected in forward bias ie Anode voltage must be in  higher voltage than the cathode voltage. If it is connected in reversed bias it act as a short circuit 

Application :
It is used power supply as a filtrating devices to reduce the ripple in voltage.
And 
In the low pass filter for the input and output smoothing and doesn't work in large amplitude and high frequency signal.
Electrolytic Capacitor
Electrolytic Capacitor

Capacitance:

Capacitance is the measurement of charge stored in the capacitor. Farad is the S.I. unit of capacitance.
We generally, don't use 1 farad of capacitance because 1 farad is a huge value of capacitance, if we want to make a  1 Farad capacitor, it will occupy a half space in your room.
However, we uses very less power capacitance for household purposes. Generally we uses 2.25 microfarad capacitor in our 220v Fan and all our tv, computer  and laptop have capacitor have capacitor which have value:1*10-12.

Ceramic Capacitor:

Ceramic capacitor is a fixed value capacitor which is made up of ceramic dielectric that's why gets the name: ceramic capacitor. Ceramic capacitor are small in size and are in the range of few picofarad to microfarad. These are used for coupling and decoupling applications.