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9 volt battery. 90cm total length of copper wire. Given the strength of the battery and the size of the coil, there are an ideal

9 volt battery. 90cm total length of copper wire.

  1. Given the strength of the battery and the size of the coil, there are an ideal number of coil turns that make a motor spin at high speeds without being unstable. Critique a motor design constructed with a coil of 50 coils of wire instead of 15 coils. Use your results to support your critique.

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