If you have a current passing in the loop that causes a magnetic field and, in turn, for the other equation that causes an electric field, which in turn causes a current.
如果有一个电流通过线圈，并激发出磁场，相应的，根据另一个方程激发出电场，并产生电流。
2
For within this loop you now have an attribute of potential electriccurrent.
为在这个环路您现在有一个属性的潜在电流。
3
The servo systems having high precision is composed of a position feedback loop, a velocity feedback loop and a electriccurrent feedback loop.