Externet Posted January 22, 2018 Share Posted January 22, 2018 Hi. A coil of N turns wound on a long spool of small diametre, and another coil with the same number of turns N wound in a short length spool of large diametre. Testing one at a time, which should produce a larger voltage output sensing a spinning magnet several metres away ? Would results be different with iron cores inserted ? Link to comment Share on other sites More sharing options...
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