即一万亿分之一特斯拉，特斯拉是磁感应强度的计量单位。

The tesla is the unit that defines magnetic field strength.

用磁标势法计算了圆形线电流的磁感应强度。

Magnetic induction of a circular current is calculated using magnetic scalar potential.

当磁感应强度增加到一定值时，其误差几乎不变。

While the relative error hardly changes if magnetic induction strength increases to some value.

高饱和磁感应强度能提高变压器的工作点，缩小电源体积。

High saturation flux density can improve the work point of transformers and reduce the volume of power supply.

介绍了如何利用示波器观察和测量铁磁物质的磁滞回线、剩余磁感应强度和矫顽力。

It introduces that how to watch and measure the hysteresis loop-line, residual magnet and coercive force of ferromagnet through an oscillograph.