Eddy Currents on a Copper Ring (1 Viewer)

[Phaze]

So the answer is C on paper but I keep feeling as if it's B. I was under the impression it doesn't need to be a closed circuit for there to be an induced Eddy Current just a surface for the electrons to move on.

Would appreciate if someone explained why B isn't right.

 

[Fizzy_Cyst]

This is a case of what I like to call "HSC SEZ"

HSC SEZ that there must be a closed loop for 'eddy currents' to 'flow', therefore as soon as a slit goes the full length of the ring, no eddy currents can flow, no induced magnetic field, no opposition to motion, therefore C is the answer as the only one which will experience a braking force is the solid copper ring.

IN REALITY, B occurs

 

[Phaze]

This is a case of what I like to call "HSC SEZ"

HSC SEZ that there must be a closed loop for 'eddy currents' to 'flow', therefore as soon as a slit goes the full length of the ring, no eddy currents can flow, no induced magnetic field, no opposition to motion, therefore C is the answer as the only one which will experience a braking force is the solid copper ring.

IN REALITY, B occurs

Thanks for the reply!

 

[mreditor16]

This is a case of what I like to call "HSC SEZ"

HSC SEZ that there must be a closed loop for 'eddy currents' to 'flow', therefore as soon as a slit goes the full length of the ring, no eddy currents can flow, no induced magnetic field, no opposition to motion, therefore C is the answer as the only one which will experience a braking force is the solid copper ring.

IN REALITY, B occurs

so what do we put if it comes in hsc? are you telling me that in that year, they marked B wrong? :/

 

[avi888]

yeah that was a fuck up year, they were like yeah its right but fuck physics

 

[Fizzy_Cyst]

so what do we put if it comes in hsc? are you telling me that in that year, they marked B wrong? :/

Yep, B is wrong for HSC sake. HSC wants us to say that for eddy currents to flow, there MUST be a closed loop for it to flow through

 

[Phaze]

Yep, B is wrong for HSC sake. HSC wants us to say that for eddy currents to flow, there MUST be a closed loop for it to flow through

Are there more "HSC SEZ" things we should look out for?

 

[tomnomnom696]

#HSCSEZ

 

[Rhinoz8142]

Are there more "HSC SEZ" things we should look out for?

and how to deal with them.