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self inductance how !!!!!!!!!!!!!!!!!!

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mhmd.sh89

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hi everyone

we know that faraday has discovered that the change in current (magnetic field) create an opposite voltage in the inductor.
ok it's a experience

but can i know why physically and by images if you can ??
why oppose a change in current , and not in current itself (how)

I didn't find any good explanation about self inductance or a book !!


why we don't see in a transformer a result with a dc voltage but we do with an ac .

if anyone can help ?

thanx very much
 

why we don't see in a transformer a result with a dc voltage but we do with an ac .
Change in current causes change in magnetic field, which causes induced voltage.

With DC, current is constant, so magnetic field does not change and there is no induced voltage.
 


thank you very much

i wanna see it and i want reply

thanx
 

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