Induced emf. Please help

[gaganpreetsingh]

Suppose i have a wooden ring and a time varying magnetic field is passed through it. Then will there be induced emf.

 

[Doc Al]

Sure. The changing magnetic field creates an induced electric field.

 

[Tide]

The induced EMF would be present even in a vacuum! :)

 

[gaganpreetsingh]

That's what written in the book. The ans is yes. but i am not able to appreciate the fact. WHY?

 

[Doc Al]

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.