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• 12:53, 20 April 2022 Physdemo talk contribs created page Metal Detector (Created page with "{{NewDemo|subject=Electricity and Magnetism|topic=Inductance|file1=MetalDetector.GIF}} The metal detector consists of two perpendicular coils; one hooked up to a signal generator and one to an oscilloscope. A sinusoidally varying current is sent through one coil, producing a changing magnetic field. You can adjust the frequency for resonance ( made by the inherent L and C values of the coil 7130hz for this set-up) for maximum signal transfer. The coils are then adjusted...")