In the experiment, the compass detected magnetic fields with a strength between 0.1 gauss, which is less than the Earth's magnetic field, and 200 gauss, which is stronger than a small ironmagnet.
在试验中，罗盘探测到的磁场强度范围从低于地球磁场的0.1高斯到高于一小块磁铁的200高斯。
2
Suppose someone to place an iron ball on the table, then this ball will run straightway towards the magnet.