Exploring Various Capacitor Types and Their Applications in Circuits

This assignment provides a comprehensive overview of various capacitor types used in electrical engineering. It begins by discussing mica capacitors, detailing their properties, dielectric strength, and applications. The document then explores plastic capacitors, explaining their use of polyester and polypropylene dielectrics, and their applications in circuits. Paper capacitors are also examined, comparing them to plastic capacitors and highlighting their use in high-voltage and high-current applications. Ceramic capacitors are then discussed, focusing on their small size, high charge storage capacity, and various shapes. The assignment also covers fixed and variable capacitors, explaining their functions and the different types available. Finally, the document provides information on dielectric materials, electric flux density, and permittivity, which are crucial for understanding capacitor performance and selection. This assignment is designed to help students understand the fundamentals of capacitors and their practical applications in electronic circuits.

The electric field stored in capacitor is called as energy. This charge stored or energy stored by
using of various kinds of capacitors,
MICA CAPACITORS
MICA
The mica has one kind of silicate mineral, which has founded in granite rock. The mica can use
as dielectrics this kind of material oppose the flow of current or electric charge. The mica
capacitor has more stable and reliable and high precision capacitors.
The different kinds of mica capacitors,
1) Stacked mica capacitors
2) Silvered mica capacitors
The thin mica capacitor has rated for 100 volt
The particular high voltage capacitor has made for RFTX employ it has rated for 10Kv.
The following factor should choose while selecting the mica capacitors.
Lead spacing 3.6mm, 5.9mm, 8.7mm, 11.1mm
Capacitor 2Pf, 22pF, 100pF, 420Pf
MICA DIELECTRIC STRENGTH:
Mica 188mv/m
ELECRTIC FLUX DENSITY:
The amount of flux passes through area A that perpendicular to the direction of the flux.
MICA PERMITTVITY:
PLASTIC CAPACITORS
A plastic film has used as dielectric. The electrodes are made of aluminum or zinc. The
combination of both, we designed plastic capacitor. This kind of capacitors are used in circuit
where low power and high insulation required
PLASTIC CAPACITOR USED AS DIELECTRIC:
Polyester and polypropylene

THE DIFFERENT KIND OF PLASTIC FILM CAPACITOR:
1) Film foil capacitor
2) Metalized film capacitors
APPLICATION OF PLASTIC CAPACITOR:
1) Motor run
2) Peak voltage detector
3) Filter
4) A/D converters
ADVANTAGE OF PLASTIC CAPACITORS:
Higher stability
Low cost
Low loss at even at high frequency
PLASTIC CAPACITOR DIELECTRIC STRENGTH:
PLASTIC CAPACITOR PERMITTVITY:
PAPER CAPACITORS
The paper capacitor is same as plastic. The paper has used as dielectric instead of plastic. This
kind of capacitor has made with aluminum sheets and paper sheets. The paper sheets are covered
with oil and wax to protect from moisture.
THE DIFFERENT KIND OF PAPER CAPACITOR:
1) Paper sheet capacitor
2) Metalized paper capacitor
APPLICATION OF PAPER CAPACITOR:
1) High voltage application
2) High current application
PAPER CAPACITOR DIELECTRIC STRENGTH:
PLASTIC CAPACITOR PERMITTVITY:

CERAMIC CAPACITORS
The electronic circuit has used mostly ceramic capacitors. This capacitor has special feature that
size is small and carry huge amount of charge.
THE DIFFERNET KINDS OF SHAPES CERAMIC CAPACITOR:
1) Ceramic disc capacitor
2) Ceramic tubular capacitor
APPLICATON OF CERAMIC CAPACITOR:
1) Antenna coupling
2) Resonant circuit
3) Volume control
4) Auto volume control of filter
ADVANTAGE OF CERMAIC CAPACITORS:
1) Low loss
2) High stability
3) High capacitance
4) Small size
PAPER CAPACITOR DIELECTRIC STRENGTH:
PLASTIC CAPACITOR PERMITTVITY:
FIXED AND VARIABLE CAPACITORS
The electronic device which stored electric charges is called as energy. This charge may be
stored in fixed or variable types of capacitor.
The two conducting surface parallel to each other either separate by air or non conducting
martial. This kind of material called as dielectric material.
THE DIFFERNET KINDS OF CAPACITOR:
1) Fixed capacitor
2) Variable capacitor
Fixed capacitor has ability stored charge up to fix limit

FIXED CAPACITOR HAS DIFFERENT KINDS ACCOURDING TO DIELECTRIC
MATERIAL:
1) Paper capacitor
2) Ceramic capacitor
3) Plastic capacitor
4) Electrolytic capacitor
5) Mica capacitor
THE DIFFERNET KIND OF VARIABLE CAPACITOR:
1) Tuning
2) Trimmer
3) Mechanical