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A transformer couples two or more AC signals through a magnetic field. Often used as galvanic isolation and to transform one AC voltage to another.

6 votes
1 answer
2k views

Does the place of the primary matter in a transformer?

Does it matter whether I wind the primary or the secondary first? I imagine with the primary inside the secondary you'll have less leakage. Is that right? Other reasons to put the primary or secondary …
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