Capacitors: Introduction

CAPACITORS are devices for storing electric charge. They are also known as CONDENSERS


Capacitance is the ability of the capacitor to store electric charge. 
C is the symbol for capacitance in an equation.
Farad (F) is the unit of Capacitance.
Capacitance values are very small so these are the common units that are generally used.

• Microfarad (μF)
• Nanofarad (nF)
• Picofarad (pF)

Farad is the unit of capacitance.


CLASSIFICATIONS OF CAPACITORS:
 1.Polar Capacitor:
It has positive and negative terminals like a battery

2.Non-polar Capactor
It has no polarity.


3. Variable Capacitor
Their capacitance can be adjusted to different values.