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what is dc transformer? how it work?

Answer Posted / brd ganesh

T/f works based on mutual induction.so if we r
give dc to that it will burn (after saturation) due
to no oposition(eb=0). Although it act like normal t/
f at starting instant. So bye using t/f we can
change ac voltage w.r.t currunt. To change dc
voltage we can use choppers.

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