Electromagnetic induction inside a field with a contraint

AI Thread Summary
A closed loop placed stationary in a fixed magnetic field between two permanent magnets cannot generate current, as the magnetic field must change to induce electromotive force. The discussion highlights the misconception that moving one of the magnets could alter the magnetic flux, which is incorrect since both magnets are fixed. If either magnet were movable, it could indeed create a change in the magnetic field and generate current. The conversation emphasizes the importance of understanding the conditions required for electromagnetic induction. Overall, the key takeaway is that stationary magnets do not allow for current generation in a closed loop.
caspernorth
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1. A closed loop is held stationary in the magnetic field between the north and south poles of two permanent magnets held fixed. Can we hope to generate current in the loop by using very strong magnets?


well, my doubt is: as magnetic field is a vector and since we have two pairs [one movable pair] we can alter the net field, right? [by holding in different positions] and thereby change the flux?
anyway the answer is no and I believe I didn't get the concept right!
 
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caspernorth said:
1. A closed loop is held stationary in the magnetic field between the north and south poles of two permanent magnets held fixed. Can we hope to generate current in the loop by using very strong magnets?


well, my doubt is: as magnetic field is a vector and since we have two pairs [one movable pair] we can alter the net field, right? [by holding in different positions] and thereby change the flux?
anyway the answer is no and I believe I didn't get the concept right!

It says both magnets are fixed. How do you jump to the conclusion that one of them is moveable?
 
rude man said:
It says both magnets are fixed. How do you jump to the conclusion that one of them is moveable?

oh, sorry I meant to ask if one was movable can we make a change.
 
caspernorth said:
oh, sorry I meant to ask if one was movable can we make a change.

Yes, if one or both were moveable then you could get current in the loop.
But they're not, are they.
 
rude man said:
Yes, if one or both were moveable then you could get current in the loop.
But they're not, are they.

you are rude, but thanks for the help
 
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