如图是一金属圆环,半径为r.环旁为一通有电流强度为I的导线(与环未接触).导线距环的中心为λr(λ∈[0,+∞)).求:1.金属环的磁通量;2.若电流强度改变(增或减),金属环的运动方向.麻
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![如图是一金属圆环,半径为r.环旁为一通有电流强度为I的导线(与环未接触).导线距环的中心为λr(λ∈[0,+∞)).求:1.金属环的磁通量;2.若电流强度改变(增或减),金属环的运动方向.麻](/uploads/image/z/8114211-27-1.jpg?t=%E5%A6%82%E5%9B%BE%E6%98%AF%E4%B8%80%E9%87%91%E5%B1%9E%E5%9C%86%E7%8E%AF%2C%E5%8D%8A%E5%BE%84%E4%B8%BAr.%E7%8E%AF%E6%97%81%E4%B8%BA%E4%B8%80%E9%80%9A%E6%9C%89%E7%94%B5%E6%B5%81%E5%BC%BA%E5%BA%A6%E4%B8%BAI%E7%9A%84%E5%AF%BC%E7%BA%BF%EF%BC%88%E4%B8%8E%E7%8E%AF%E6%9C%AA%E6%8E%A5%E8%A7%A6%EF%BC%89.%E5%AF%BC%E7%BA%BF%E8%B7%9D%E7%8E%AF%E7%9A%84%E4%B8%AD%E5%BF%83%E4%B8%BA%CE%BBr%EF%BC%88%CE%BB%E2%88%88%EF%BC%BB0%2C%EF%BC%8B%E2%88%9E%EF%BC%89%EF%BC%89.%E6%B1%82%3A1.%E9%87%91%E5%B1%9E%E7%8E%AF%E7%9A%84%E7%A3%81%E9%80%9A%E9%87%8F%3B2.%E8%8B%A5%E7%94%B5%E6%B5%81%E5%BC%BA%E5%BA%A6%E6%94%B9%E5%8F%98%EF%BC%88%E5%A2%9E%E6%88%96%E5%87%8F%EF%BC%89%2C%E9%87%91%E5%B1%9E%E7%8E%AF%E7%9A%84%E8%BF%90%E5%8A%A8%E6%96%B9%E5%90%91.%E9%BA%BB)
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