Static magnetic field rotating inside stationary toroidal coil

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Salvador12

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what would happen if I took a toroidal core , generated a static toroidal magnetic field in the core and then rotated the core around it's symmetry axis within a larger stationary toroidal winding around the same core?Just for simplicity imagine a toroidal transformer with a rotating core inside.
Would I get DC current generated in the stationary coil? If yes can anyone explain by what law and formula?
 

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Hi

my guess. nothing happens.
To be sure we need to see a drawing/sketch.

Klaus
 

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the magnetic field inside the torroidal core is essentially confined to the core.
there is some leakage of field lines, but it is minimal.

now you put it another coil around the same core and rotate the original

if the current in the original coil is DC, the flux is constant and you'll get nothing
if the current in the original coil is AC, the flux changes and you'll get AC voltage and
current, depending on the load, etc, as with any transformer

i do not see any advantage to rotating the original torroid, and I see a mechanical nightmare.
 

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