You get 481 turns on the primary coil, 3800 on the secondary (both ±10%). We mounted both coils on plastic spools, with 2 binding posts on each coil. Square bases come on both secondary coil ends —and on one primary coil end — so you can slide it inside the secondary coil. Comes with soft iron core for induction studies.
Requires a galvanometer and bar magnets, sold separately.
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