【简答题】矩形线圈两边长分别为20cm和10cm,匝数为1000,通有0.1mA的电流,转轴通过两长边中点。把线圈置于方向向右、B=0.1T的匀强磁场中,且线圈长边与磁场平行,线圈上的电流为顺时针方向。求:
【单选题】In general, the incomes of employees in large firms tend to be:
D.
None of the above are correct.
【简答题】阅读理解。 One day the employees of a large company in St Louis, Missouri returned from their lunch break and were greeted with a sign on the front door. The sign said: 'Yesterday the person who has been h...
【简答题】A.It was cleaned. B.There was a large sale. C.The employees had to work very late. D.There was a robbery.
【多选题】我国实行有管理的自由进口,管理具体体现在()
【单选题】把长20cm通有3A电流的直导线放入磁感强度为1.2T的匀强磁场中,当电流方向与磁场方向垂直时,导线所受的磁力是多大?
【判断题】所有者权益包括实收资本、资本公积、盈余公积和未分配利润。
【多选题】物业管理与传统的房屋管理有着本质的区别,主要体现在( )。
【判断题】企业所有者权益包括实收资本、资本公积、盈余公积三项内容。
【单选题】把长 20cm 通有 3A 电流的直导线放入磁感强度为 1.2T 的匀强磁场中, 当电流方向与磁场方向平行时,磁力又是多少?