Product Description
Primary coil:
1) This instrument is composed of the demonstrate primary coil, demonstrate secondary coil, soft core.
2) Primary coil's inner diameter is 11 mm, outside diameter is 15mm, turns 200; The secondary coil's inner diameter is 24mm, outside diameter is 30mm, coiling width is 370 turns.
3) This instrument is mainly used for demonstrating electromagnetic induction and verifying Lenz's law in middle school physics, with J2409 for demonstration and J2410 for student grouping experiments. It mainly consists of three parts: the original coil, the secondary coil, and the soft iron core
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