Name: Equipotential Surfaces and Its Properties
Uploaded: 2019-07-19
Duration: 7 min 22 s
Description: The surface over which the electric potential is the same everywhere is called an equipotential surface. Let's more about it and its properties in this video.

Question

Discuss electrostatic shielding?

Accepted Answer

The phenomenon of making a region free from electric field is called electrostatic shielding.

This concept can be explained by certain assumptions – Let us consider a conductor with a cavity, with no charges placed inside the cavity. The electric field inside the cavity is zero whatever be the charge on the surface of conductor or surrounded by the conductor. Also, it is independent of shape and size of the cavity and the conductor.
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.

NCERT Solutions for Chapter: Electrostatic Potential and Capacitance, Exercise 2: VSA

NCERT Physics Solutions for Exercise - NCERT Solutions for Chapter: Electrostatic Potential and Capacitance, Exercise 2: VSA

Questions from NCERT Solutions for Chapter: Electrostatic Potential and Capacitance, Exercise 2: VSA with Hints & Solutions

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