Question

What is the reason for two uncharged bodies to get charged on rubbing?
A) Conduction
B) Friction
C) Induction
D) None of these

Answer 1

Hint: We will proceed with the theory of the above alternative here, then we will study the formula of kinetic energy and electrons, and we also know that electromagnetism has a positive charge and a negative charge. then the results of rubbing in a charge transfer to overcome the statement.

Formula used:
When two bodies are charged by rubbing them together, they acquire equal and opposite charge.
Kinetic energy, \[KE = \dfrac{1}{2}m{v^2}\]
Where,
$KE$ is kinetic energy
$m$ is mass $(kg)$
$v$ is the velocity $(m/s)$

Complete step by step solution:
Given by, Two uncharged bodies on rubbing
We find the reason,
Now, Two uncharged bodies on rubbing get charged
There is a movement of electrons from one substance to the other material when two distinct materials are rubbed together.
One of the rubbed materials loses electrons and becomes charged positively and the electron gains other material and becomes charged negatively.
As the kinetic energy of the electrons is rubbed by two bodies, the velocity increases, for which the electron travels faster and is moved to another body somehow. And so, it charged the body.
\[KE = \dfrac{1}{2}m{v^2}\]
kinetic energy increasing and hence the velocity increasing
For example:
The rod acquires one type of charge when a glass rod is rubbed with silk and the silk acquires the second type of charge. This is valid for any pair of objects that can be electrified by rubbing. Now, if the electrified glass rod comes into contact with the silk with which it has been rubbed, they can no longer attract one another.
Friction means that two bodies or objects are rubbed together. There will be friction between the contact surfaces.
Therefore, Two uncharged bodies on rubbing get charged due to Friction.

The option B is the correct answer.

Note: When we have to analyze the concept and describe the solution for Virtually every force that we can think of like friction then the chemical force between atoms holding the matter together, and even the forces describing processes occurring in cells of living organisms.