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A device used for storing electric charges is called capacitor.

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It consists of two parallel metal plates, separated by small distance as shown in figure.

Capacitor Tutorial and Capacitor Basics Summary

Dielectric: 	The medium between the two plates is air or sheet of some insulator. This medium is known as dielectric

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Mutual interaction between the charges kept bound on plates of capacitor even after the removal of battery. An electric field generated between plates which kept bound the  charges .

Electric field
positively
Charged conductive
Dielectric
Connecting wires
Negatively
charged
Electrons
plates
Holes

Charging of capacitor :  	Capacitor is commonly charged by connecting its plates to the opposite terminals of Battery. The positive charge appear on plate attached to positive terminal of battery. Similarly negative charge appear on the other plate of capacitor.

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Capacitence : 	 The capability of a capacitor to store charges is called capacitance. It can be represented by  C. Its unit is  Farad.   Mathematically                                       Q = C V Where     C = capacitance of capacitor Q = charge stored on the capacitor V = potential difference of the battery

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One Farad: 	The capacitance of capacitor is one Farad  “ the capacity of capacitor which stores a charge of 1 coulomb having the potential difference of 1 volt between the plates ”

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Polar
Capacitors
Electrolytic Tantalum
Electrolytic
Ceramic
Tanblum
Polyester
SMT
MKT
Trimmer & Tuning Capacitors

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Polar capacitors: 	 Polarized capacitors are such capacitors whose terminals (electrodes) have  Polarity ,positive and negative. It can only be connected one way in the circuit. The positive terminal should be connected to positive of supply and negative to negative.  These capacitors are  ony  used in DC applications.

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Non polar capacitors : 	 A type of capacitors that has no implicit polarity. It can be connected either way in the circuit. They are mainly used in circuits of coupling , decoupling , feedback and oscillation .

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Variable Capacitor Basics, construction, Working, types and Uses

C5 Variable Capacitors – Passive Components Blog

Variable capacitors : 	 A variable capacitor is a capacitor whose capacitance may be intentionally and repeatedly changed mechanically or electronically. There are many uses of these variable capacitors such as for tuning in LC circuits of radio receivers .

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Series combination of Capacitor   	 When capacitors are connected plate to plate  i.e  the right plate of one capacitor is connected to the left plate of next capacitor so on as shown in fig. this  combination is called series combination. When a battery  of potential (V) is attached in the series combination. The potential difference must be equal to                                       V = V 1  + V 2  + V 3 The charge stored on each capacitor will be same. So The capacitance of capacitor

What is the series combination of a capacitor? - Quora

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Parallel combination of capacitor When two or more capacitors are connected between the same points in the circuit, then it is called parallel combination. When it is attached to battery of potential (V) the potential across each capacitors is same                V = V 1  = V 2  = V 3 Where the charge stored in each capacitor is different               Q eq .  = Q 1  + Q 2 + Q 3   The capacitance of capacitor is  	   C eq .  = C 1  + C 2 + C 3

Capacitor

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