Basics of Electronics
Lesson-1-> Introduction to basic Electronics fundamental concepts.4 Topics|1 Quiz
Lesson -2-> Introduction to Breadboard4 Topics|1 Quiz
Lesson-3 -> Introduction to LED4 Topics|1 Quiz
Lesson-4->Introduction to switches4 Topics|1 Quiz
Lesson-5-> Introduction to Transistor and voltage regulator4 Topics|1 Quiz
Lesson-6 -> Introduction to capacitor5 Topics|1 Quiz
Lesson-7->Introduction to Relay and diode4 Topics|1 Quiz
Activity-1->How to turn on/off multiple LED’s using a slider switch4 Topics|1 Quiz
Activity-2->How to use transistor as a switch and amplifier3 Topics|1 Quiz
Activity-3->How to make a LDR project with transistor3 Topics|1 Quiz
Activity-4->How to make a charging and discharging circuit of capacitor3 Topics|1 Quiz
Introduction->How to make a charging and discharging circuit of capacitor
In this module, we will see the charging and discharging of capacitor practically.
As we are aware; Capacitor is a device which is used to store charge(electrical energy) in the electric field.It is similar to battery but the difference is it has two metallic plate separated by a dielectric.
So, in this lesson we will make a circuit of charging and discharging of capacitor.
As soon as the switch is closed the battery is connected across the capacitor, current flows and the potential difference across the capacitor begins to rise but, as more and more charge builds up on the capacitor then no further current will flow when the potential difference across the capacitor equals that of the supply voltage.
The capacitor is then fully charged.
As soon as the switch is open means it is sided towards different position a ‘large’ current starts to flow and the potential difference across the capacitor drops. As charge flows from one plate to the other through the resistor the charge is neutralized and so the current falls.
Eventually the charge on the plates is zero and the current and potential difference are also zero – the capacitor is fully discharged.
Note: The bigger the resistor the longer the time taken.