Induced EMF in a Wooden Ring with Time Varying Magnetic Field

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Homework Help Overview

The discussion revolves around the concept of induced electromotive force (EMF) in a wooden ring subjected to a time-varying magnetic field. Participants explore the implications of electromagnetic induction in non-conductive materials.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss the presence of induced EMF and electric fields due to changing magnetic fields, questioning the necessity of a conducting medium for current induction.

Discussion Status

The conversation is ongoing, with some participants providing insights into the relationship between changing magnetic fields and induced electric fields. There is a recognition of the need for deeper understanding, particularly regarding the conditions under which induced currents occur.

Contextual Notes

Some participants express confusion about the concepts presented in textbooks and seek clarification on the underlying principles of electromagnetic induction.

gaganpreetsingh
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Suppose i have a wooden ring and a time varying magnetic field is passed through it. Then will there be induced emf.
 
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Sure. The changing magnetic field creates an induced electric field.
 
The induced EMF would be present even in a vacuum! :)
 
That's what written in the book. The ans is yes. but i am not able to appreciate the fact. WHY?
 
As I said before, it's the changing magnetic field that induces an electric field. (To understand that better, explore Maxwell's equations.) Perhaps you are thinking of an induced current: that will require a conducting loop. But the electric field is there, conducting loop or not.
 

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