Introduction to Magnetism Video Lecture | Physics for Airmen Group X - Airforce X Y / Indian Navy SSR

199 videos|422 docs|281 tests

Top Courses for Airforce X Y / Indian Navy SSR

FAQs on Introduction to Magnetism Video Lecture - Physics for Airmen Group X - Airforce X Y / Indian Navy SSR

1. What is magnetism?
Ans. Magnetism is a natural phenomenon where certain materials, such as iron, exhibit attractive or repulsive forces on other objects. It is caused by the alignment of electrons in the material, creating a magnetic field.
2. How does magnetism work?
Ans. Magnetism works due to the movement of electric charges. When the electrons in a material align in the same direction, they create a magnetic field. This field can attract or repel other magnetic materials.
3. What are the types of magnets?
Ans. There are three main types of magnets: permanent magnets, temporary magnets, and electromagnets. Permanent magnets retain their magnetism, temporary magnets can be magnetized temporarily, and electromagnets are magnets created by passing an electric current through a coil.
4. What are the practical applications of magnetism?
Ans. Magnetism has various practical applications, such as in electric motors, generators, MRI machines, compasses, magnetic storage devices like hard drives, and magnetic levitation trains. It is also used in everyday objects like speakers and refrigerator magnets.
5. How can magnets be demagnetized?
Ans. Magnets can be demagnetized by exposing them to heat or strong magnetic fields that disrupt the alignment of their electrons. Additionally, dropping or striking a magnet can also cause it to lose its magnetism.
199 videos|422 docs|281 tests
Explore Courses for Airforce X Y / Indian Navy SSR exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

Extra Questions

,

past year papers

,

Introduction to Magnetism Video Lecture | Physics for Airmen Group X - Airforce X Y / Indian Navy SSR

,

Exam

,

mock tests for examination

,

Previous Year Questions with Solutions

,

Objective type Questions

,

Introduction to Magnetism Video Lecture | Physics for Airmen Group X - Airforce X Y / Indian Navy SSR

,

Free

,

Important questions

,

shortcuts and tricks

,

video lectures

,

Viva Questions

,

Semester Notes

,

MCQs

,

pdf

,

Summary

,

practice quizzes

,

ppt

,

Sample Paper

,

Introduction to Magnetism Video Lecture | Physics for Airmen Group X - Airforce X Y / Indian Navy SSR

,

study material

;