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Description: This compact electromagnet is able to lift up to 200 pounds with only one or two 1 1/2 volt D cell batteries as a power source. This is due to precision machining of the flat surfaces (core and yoke). Compare it to cranes that can lift automobiles around a junk yard. Parts: electromagnet and one D cell battery. Purchased/Built: purchased Setup Time: 1 hour Quant. in Demo Room: 1 Source: Central Scientific Demo References The Video Encyclopedia of Physics Demonstrations Disc 19-12 A magnet powered by a 1.5 V battery lifts a large weight. Freier and Anderson Es-5 A simple electromagnet.
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