Question

What is electrostatic shielding?

Answer 1

- Hint: Basically, electrostatic shielding is depending on the evidence that the electric field fades inside the cavity of the hollow conductor. It acts like the protection shield from the electric thunderstorm.

Complete step-by-step solution -

The phenomenon of making a region free from electric field or its partial component is called electrostatic shielding. This concept can be explained by certain assumptions –
Let a conductor with a cavity, with no charges placed inside the cavity. It can be dimension independent such as the size and shape of the cavity is guarded. The electric field inside the cavity is zero whatever be the charge on the conductor and the implanting field in which it might be placed.
One important thing related to this concept is that the cavity inside the conductor remains shielded from outside electric influence. These types of field free regions are called a Faraday cage.
We can correlate this concept with certain applications which is given as –
In a thunderstorm accompanied by lightning, it is safest to sit inside a car, rather than near a tree or on the open ground. Car which contains a metallic body becomes an electrostatic shielding from lightning.
The components of electronic devices which are treated as sensitive are protected or shielded from external electric interruption by laying metal shields around them.
The outer conductors are linked to ground and give an electrical shield to the signals by the central conductor in a coaxial cable.

Note: Electric shielding process can incorporate with the combination of conductor, electric field and formed protection layer through this. Students should memorize this concept.