图中所标的导体棒ab的长度为l处于磁感应强度为b的匀强磁场中棒运动的速度均为v产生的电动势为blv的是 A．甲图和乙图b．乙图和丁图 Sketch Coloring Page

图中所标的导体棒ab的长度为l处于磁感应强度为b的匀强磁场中棒运动的速度均为v产生的电动势为blv的是 A．甲图和乙图b．乙图和丁图 Template

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tomski图中所标的导体棒ab的长度为l处于磁感应强度为b的匀强磁场中棒运动的速度均为v产生的电动势为blv的是 a．甲图和乙图b．乙图和丁图 coloring

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