Induced Electric Field inside Faraday Cage

[TESL@]

Imagine there is a hollow toroidal conducting chamber and a long solenoid in the middle. When we power the coil, does the induced electric field "propagate" inside the chamber? My prediction is that the changing flux will cause induction regardless of the cage.

Thank you.

 

[Simon Bridge]

A Faraday cage does not suppress electromagnetic fields inside it - it just shields from external fields.
Therefore any electricity/electromagnetism experiment inside a Faraday cage should proceed normally... the chamber walls you describe would be the boundary conditions for the Maxwel equations ... look up "wave guide".

 

[TESL@]

I am asking what if the solenoid is outside the chamber, in the middle of the toroid.

 

[davenn]

I am asking what if the solenoid is outside the chamber, in the middle of the toroid.

Then reread Simon's first sentence :)

 

[TESL@]

His first sentence sounds to me like he has understood the question differently, as if the field is generated inside the chamber.

 

[davenn]

His first sentence sounds to me like he has understood the question differently, as if the field is generated inside the chamber.

A Faraday cage does not suppress electromagnetic fields inside it - it just shields from external fields.

Note the bolded section of what Simon said ... that is your answer

if there is an internal field, it won't get out ... aka a microwave oven
if there is an external field it won't get in eg ...

cheers
Dave

 

[TESL@]

Thank you both.

 

[Simon Bridge]

No worries :)