In Figure 3-10a, a large area is enclosed; thus, a large voltage is developed.

在图3-10a中走线包围了较大的面积，所以产生较大的感应电压。

youdao

In Figure 3-10a, a large area is enclosed; thus, a large voltage is developed.

在图3-10a中走线包围了较大的面积，所以产生较大的感应电压。

youdao