Imagine you have a tape wrapped around a coil (e.g. an audio magnetic tape or adhesive tape). The thickness of the tape is T and the radius of the coil is R.(adsbygoogle = window.adsbygoogle || []).push({});

The task is to determine the dependence of the length of the coiled tape and the radius of the whole (coil + tape).

(e.g. - if I know that I wrapped 50 meters of tape around the coil - then what is the radius of the whole? I hope you know what I mean)

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# Length of coiled tape

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