Eddy Currents - 2 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 Eddy Currents - 2 Video Lecture - Physics for Airmen Group X - Airforce X Y / Indian Navy SSR

1. What are eddy currents?
Ans. Eddy currents are circulating currents induced in a conductor when it is exposed to a changing magnetic field. These currents flow in closed loops and are responsible for the dissipation of energy in conductive materials.
2. How are eddy currents produced?
Ans. Eddy currents are produced when a conductor is exposed to a changing magnetic field. This can occur when the conductor moves through a magnetic field or when the magnetic field itself changes in intensity. The changing magnetic field induces circulating currents within the conductor, known as eddy currents.
3. What is the significance of eddy currents?
Ans. Eddy currents have both practical and detrimental effects. On one hand, they are utilized in various applications such as induction heating, electromagnetic braking, and metal detection. On the other hand, they can cause energy loss and undesirable heating in conductive materials, leading to inefficiencies in electrical devices.
4. How can eddy currents be minimized or controlled?
Ans. Eddy currents can be minimized or controlled by using laminated or layered conductive materials. By separating the conductor into thin layers insulated from each other, the circulation of eddy currents is restricted, thus reducing energy loss. Additionally, the use of magnetic shielding can help redirect the magnetic field away from the conductor, further minimizing the induction of eddy currents.
5. Can eddy currents be used in non-destructive testing?
Ans. Yes, eddy currents are commonly used in non-destructive testing (NDT). By inducing eddy currents in a conductive material and analyzing the resulting magnetic field, defects or variations in the material's properties can be detected. This technique is particularly useful for inspecting the integrity of metal components, such as pipes, aircraft structures, and automotive parts.
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

ppt

,

Eddy Currents - 2 Video Lecture | Physics for Airmen Group X - Airforce X Y / Indian Navy SSR

,

Important questions

,

practice quizzes

,

Exam

,

Extra Questions

,

video lectures

,

Previous Year Questions with Solutions

,

Semester Notes

,

Eddy Currents - 2 Video Lecture | Physics for Airmen Group X - Airforce X Y / Indian Navy SSR

,

Free

,

shortcuts and tricks

,

Objective type Questions

,

MCQs

,

Viva Questions

,

study material

,

Eddy Currents - 2 Video Lecture | Physics for Airmen Group X - Airforce X Y / Indian Navy SSR

,

Summary

,

mock tests for examination

,

past year papers

,

pdf

,

Sample Paper

;