Capacitors
Capacitors store and release electrical energy. They are commonly used for decoupling, filtering, and energy storage in electronic circuits.
- It is used to pass AC and block DC.
- It opposes the flow of direct current.
- It consists of two conducting parallel plates separated by dielectric.
- Dielectric is made up of ceramic, mica, glass, waxed paper, and bakelite.
Capacitor current equation with respect to time:
[Tex]I(t) = C \frac{dV(t)}{dt} [/Tex]
- I(t) stands for current in capacitor with respect to time
- C stands for capacitance
- V(t) stand for voltage across the capacitor with respect to time t.
Applications of Capacitors
- It is used for storage of energy.
- It is used in filter circuits to minimize the repel voltage.
- It is used in tunning circuits for selection of frequency.
- It is used in timing circuits to select the time.
- It is used in Amplifiers.
Passive Components in Electrical Circuits
In electronic components, Passive components are electronic devices that don’t need an external power source to operate actively. They do not generate power rather they store and release it. They mainly resist, store, or control the flow of electric current or voltage in a circuit without actively amplifying or generating signals. Passive components include resistors, capacitors, inductors, diodes, and coils – that don’t require power to do their job.
A circuit is an interconnection of elements. Based on their capability to generate energy these elements are classified into active or passive elements. Electric circuits are made up of three circuit components. These are resistance, inductance, and capacitance. These are called passive circuit elements and they do not transfer electrical energy. Passive elements stores energy in the form of voltage or current.
Table of Content
- Passive Components in Electrical Circuits
- Properties of Passive Components
- Working of Passive Components
- Types of Passive Components
- Comparision between Active vs Passive Electronic Components
- Advantages and Disadvantages of Passive Components
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