【单选题】关于通电导线所受安培力F的方向,磁场B的方向和电流I的方向之间的关系,下列说法正确的是( )About the relationship between the direction of magnetic force F, the direction of magnetic flux denstiy B and the direction of current I, the following s...
A.
F、B、I三者必须保持相互垂直F. B and I must be vertical to each other
B.
F必须垂直B、I,但B、I可以不相互垂直F must be vertical to B and I, but B and I may not be vertical to each other
C.
B必须垂直F、I,但F、I可以不相互垂直B must be vertical to F and I, but F and I can not be vertical to each other
D.
I必须垂直F、B,但F、B可以不相互垂直,I must be vertical to F and B, but F and B may not be vertical to each other