Question

What are some examples of capacitors used in circuits?

Answer 1

Hint: As a first step, you could recall the basic functioning of a capacitor. Then, you could think of situations where the use of a capacitor is applicable. Then, you could list them out one by one and thus explain how using the capacitor is preferred in that particular situation. Also, mention about its operation in each case.

Complete answer:
In the question we are asked to list out the examples of various applications of capacitors in an electric circuit. They are basically used to store energy in the form of electric charges and then release them when required and they are used in almost every area of electronics. But the way in which they operate is the same in all these applications.

First application is in the camera flashes. These camera flashes are known to require plenty of energy in order for it to produce a bright flash. This is when the capacitor comes into picture. An array of capacitors can store enough energy as per requirement and quickly release it across the bulb filament.

Next application is in the computer emergency shutdown. Losing power is a risk factor for safe shut down of the computer. But an array of capacitors provides enough time that is required to save the critical files and thus can limit power loss damage.

Next application is in the conversion of AC to DC. Capacitors could be charged at peaks and will be followed by discharge during the gaps that also smooth the output signal which a rectifier fails to do.

Hence, these are three applications of capacitors in electronic circuits.

Note:
We should understand that each form of capacitor has its own attributes, that is, a capacitor can perform really well in its assigned operation. In the design process, it is very important to choose the right capacitor in a circuit. A clear understanding of the particular application will help in choosing the right capacitor in a circuit.