Question

Study of relationship between electricity and magnetism is called
$A.$ Current electricity
$B.$ Electric magnetism
$C.$ Magneto electricity
$D.$ Electromagnetism

Answer 1

Hint: We know that electricity and magnetism are related to each other. We also know that flow of current in a conductor produces a magnetic field around it. There are many applications based on combined action of electricity and magnetism. We will use these ideas to get the correct answer.

Complete step by step solution:
We should have the knowledge that the branch of physics which deals with the study of the relationship between electricity and magnetism is called electromagnetism.
Electromagnetism deals with electromagnetic forces which are caused between electrically charged particles. Electromagnetic force is represented through Lorentz force which is exerted due to a magnetic field on moving electric charge. Electromagnetic force is therefore defined as a type of force that occurs between electrically charged particles.
We should also know that electromagnetic forces are responsible for the chemical bonding between atoms to form molecules. It is an electromagnetic force which is responsible for the chemical processes which occur due to the interaction between electrons.

Additional Information:
It is a fact that electromagnetic force is one of the four fundamental forces.
The phenomenon of electromagnetic induction is based on electromagnetism.
The waves which represent electromagnetism are called electromagnetic waves which oscillate perpendicular to both electric and magnetic waves.
Electromagnetism finds many applications in modern day science and engineering.

Note: We should not be confused between electromagnetism and electromagnetic induction. Electromagnetic induction is based on electromagnetism. Electromagnetic induction is defined as the process of inducing electric current by varying magnetic flux.