一道有关电磁感应的物理题如图所示,用电动机沿竖直导体框架牵引一根原来静止的金属棒ab,棒的长度L=1m,质量m=0.1kg,电阻R=1Ω,导体框架处在水平的匀强磁场中,磁感应强度B=1T,棒ab与框架接触良
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![一道有关电磁感应的物理题如图所示,用电动机沿竖直导体框架牵引一根原来静止的金属棒ab,棒的长度L=1m,质量m=0.1kg,电阻R=1Ω,导体框架处在水平的匀强磁场中,磁感应强度B=1T,棒ab与框架接触良](/uploads/image/z/6250683-3-3.jpg?t=%E4%B8%80%E9%81%93%E6%9C%89%E5%85%B3%E7%94%B5%E7%A3%81%E6%84%9F%E5%BA%94%E7%9A%84%E7%89%A9%E7%90%86%E9%A2%98%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E7%94%A8%E7%94%B5%E5%8A%A8%E6%9C%BA%E6%B2%BF%E7%AB%96%E7%9B%B4%E5%AF%BC%E4%BD%93%E6%A1%86%E6%9E%B6%E7%89%B5%E5%BC%95%E4%B8%80%E6%A0%B9%E5%8E%9F%E6%9D%A5%E9%9D%99%E6%AD%A2%E7%9A%84%E9%87%91%E5%B1%9E%E6%A3%92ab%2C%E6%A3%92%E7%9A%84%E9%95%BF%E5%BA%A6L%3D1m%2C%E8%B4%A8%E9%87%8Fm%3D0.1kg%2C%E7%94%B5%E9%98%BBR%3D1%CE%A9%2C%E5%AF%BC%E4%BD%93%E6%A1%86%E6%9E%B6%E5%A4%84%E5%9C%A8%E6%B0%B4%E5%B9%B3%E7%9A%84%E5%8C%80%E5%BC%BA%E7%A3%81%E5%9C%BA%E4%B8%AD%2C%E7%A3%81%E6%84%9F%E5%BA%94%E5%BC%BA%E5%BA%A6B%3D1T%2C%E6%A3%92ab%E4%B8%8E%E6%A1%86%E6%9E%B6%E6%8E%A5%E8%A7%A6%E8%89%AF)
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