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[主观题]
导线ab长为L,绕过O点的垂直轴以匀角速w转动。磁感应强度B平行于转轴,如题9-7所示,试求:(1)ab两
导线ab长为L,绕过O点的垂直轴以匀角速w转动。磁感应强度B平行于转轴,如题9-7所示,试求:(1)ab两
导线ab长为L,绕过O点的垂直轴以匀角速w转动。磁感应强度B平行于转轴,如题9-7所示,试求:
(1)ab两端的电势差;
(2)a,b两端哪一点电势高?
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