Process of charge and discharge

CHARGING AND DISCHARGEING OF CAPACITOR
1

Table of contents
Serial
number
Name of contents Page
number
1. Introduction 3
2. Objective 4
3. Task-1 Capacitor 5,6
4. Task-2 Storage of energy in capacitor 7
5. Task-3 Process of charge and discharge 8,9
6. Task-4 Time constant 10
7. Task-5 Time interval 11
8. Task-6 Compare between recorded and calculated value 12
9. Conclusion 13
10. Reference 14
Introduction
2

Capacitor is originally known as condenser that is a bi-terminal electrical element and used
for storing charge as electric field. The capacitor is used vary widely as practical purpose but
in all type of capacitor bi-terminal is common. Conductor may be various for fabricating a
capacitor, like aluminium foil, thin film of metal and a disk. The use of non conducting
dielectric metal is increase capacitor’s charge capacity. Metal is used for dielectric purpose
are glass, ceramic, plastic film, air, paper, mica, etc. They are very widely used for
fabricating the parts of electrical circuits and devices. Firstly capacitor was invented in year
1740s, an european electrical scientist was experimenting and observed that electric charge
could be stored in the water filled glass jars, the glass jar is known as leyden jars. Now a day
element capacitor is very widely using for blocking DC when the time of passing AC.
Objective
3

 Explain the working of capacitor.
 How to calculate the stored charge in capacitor.
 What is capacitance.
 Importance of time constant of a capacitor.
Task-1
4