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what happens when we apply dc to a transformer
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Answer Posted / satyapal prajapati
when ac is applied on the t/f primary there is change in
flux in primary. due to this change in flux an emf induced
in the primary which opposes the applied voltage according
to lenz's law called back emf.
but when we apply dc to the primary there is no flux
change and no back emf. the applied voltage damage the
primary winding of t/f. and there is no voltage in the
secondry.
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