Question

Explain the properties of Capacitors.

Answer 1

An electronic device that stores and releases electricity in a circuit is known as a capacitor. It can also carry alternating current but not direct current. A capacitor is a necessary component of electrical devices, it is mostly present in an electronic circuit.

Complete answer:
In an electrical circuit, a capacitor is a device used to store charges. When an earthed conductor is taken close to a conductor, the capacitance increases significantly. This is how a capacitor works. As a result, a capacitor consists of two plates of equal and opposite charges separated by a distance.

The properties of capacitors include working voltage, tolerance, working temperature and temperature coefficient. Now, we shall understand each of the properties in detail.
1) Working voltage: The highest continuous voltage that can be applied to a capacitor before it fails is defined as one of the important properties of a capacitor.
2) Tolerance: Capacitor tolerance is calculated in terms of plus or minus values. For a capacitor with higher values, these values are used to express the percentage.
3) Working temperature: As the dielectric properties change, the temperature increases, affecting the capacitance value. The working temperature range for capacitors is $- {30^o}C$ to $+ {125^o}C$ .
4) Temperature coefficient: The maximum difference in capacitance over a specified temperature range is used to determine the temperature coefficient of a capacitor.

Note:
Capacitors smooth the performance of power supplies in analogue filter networks. They use resonant circuits to tune radios to specific frequencies. Storage capacitors are used to fuel flash technology in most smartphones, mirrorless cameras, and DSLR cameras.