All Courses
Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity Get the App Login Join for Free
Sign in Open App
Class 12 Exam  >  Class 12 Questions  >  why Eddy current are produced? Related: Eddy... Start Learning for Free
SaveJoin the Discussion on the App
Clear all your Class 12 doubts with EduRev
Verified Answer
why Eddy current are produced? Related: Eddy Currents: Part 2 - Elect...
During braking, the metal wheels are exposed to a magnetic field from an electromagnet, generating eddy currents in the wheels. This eddy current is formed by the movement of the wheels. So, by Lenz's law, the magnetic field formed by the Eddy current will oppose its cause.
This question is part of UPSC exam. View all Class 12 courses
Explore Courses for Class 12 exam

Similar Class 12 Doubts

Read the following text and answer the following questions on the basis of the same:Spark coil The principle of electromagnetic induction was discovered by Michael Faraday in 1831. Induction coils were used widely in electrical experiments and for medical therapy during the last half of the 19th century, eventually leading to the development of radio in the 1890's. The spark coil designed on the principle of electromagnetic induction was the heart of the earliest radio transmitters. Marconi used a spark coil designed by Heinrich Rhumkorff in his early experiments. An induction coil or "spark coil" is a type of electrical transformer used to produce high-voltage pulses from a low-voltage (DC) supply. To create the flux changes necessary to induce voltage in the secondary coil, the direct current in the primary coil is repeatedly interrupted by a vibrating mechanical contact called interrupter.The spark scoil consists of two coils of insulated wire wound around a common iron core. One coil, called the primary coil, is made from relatively few (tens or hundreds) turns of coarse wire. The other coil, the secondary coil typically consists of up to a million turns of fine wire (up to 40 gaug e). An electric current is passed through the primary, creating a magnetic field. Because of the common core, most of the primary's flux couples with the secondary. When the primary current is suddenly interrupted, the magnetic field rapidly collapses. This causes a high voltage pulse to be developed across the secondary terminals due to electromagnetic induction. Because of the large number of turns in the secondary coil, the secondary voltage pulse is typically many thousands of volts. This voltage is sufficient to create an electric spark, to jump across an air gap separating the secondary's output terminals. For this reason, this induction coils are also called spark coils. To operate the coil continually, the DC supply current must be repeatedly connected and disconnected. To do that, a magnetically activated vibrating arm called an interrupter is used which rapidly connects and breaks the current flowing into the primary coil. The interrupter is mounted on the end of the coil next to the iron core. When the power is turned on, the produced magnetic field attracts the armature. When the armature has moved far enough, contacts in the primary circuit breaks and disconnects the primary current. Disconnecting the current causes the magnetic field to collapse and create the spark. A short time later the contacts reconnect, and the process repeats. An arc which may form at the interrupter contacts is undesirable. To prevent this, a capacitor of 0.5 to 15 μF is connected across the primary coil.Spark coil is a type of

why Eddy current are produced? Related: Eddy Currents: Part 2 - Electromagnetic Induction, Class 12, Physics
Question Description
why Eddy current are produced? Related: Eddy Currents: Part 2 - Electromagnetic Induction, Class 12, Physics for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about why Eddy current are produced? Related: Eddy Currents: Part 2 - Electromagnetic Induction, Class 12, Physics covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for why Eddy current are produced? Related: Eddy Currents: Part 2 - Electromagnetic Induction, Class 12, Physics.
Solutions for why Eddy current are produced? Related: Eddy Currents: Part 2 - Electromagnetic Induction, Class 12, Physics in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of why Eddy current are produced? Related: Eddy Currents: Part 2 - Electromagnetic Induction, Class 12, Physics defined & explained in the simplest way possible. Besides giving the explanation of why Eddy current are produced? Related: Eddy Currents: Part 2 - Electromagnetic Induction, Class 12, Physics, a detailed solution for why Eddy current are produced? Related: Eddy Currents: Part 2 - Electromagnetic Induction, Class 12, Physics has been provided alongside types of why Eddy current are produced? Related: Eddy Currents: Part 2 - Electromagnetic Induction, Class 12, Physics theory, EduRev gives you an ample number of questions to practice why Eddy current are produced? Related: Eddy Currents: Part 2 - Electromagnetic Induction, Class 12, Physics tests, examples and also practice Class 12 tests.
Explore Courses for Class 12 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
Get App
© EduRev
Education Revolution
Follow Us
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup