棒マグネットの内部は、小さなマグネットがN極S極が反発し合うかたちで詰

棒マグネットの内部は、小さなマグネットがN極S極が反発し合うかたちで詰め込まれていて、磁力の強い所と弱い所が交互にあります。そのため、素早く測定器具を動かしてしまうと、磁力の強い箇所を通り越して測定できない場合があるので、ゆっくり動かすようにします。

Results (English) 1:

Bar magnet inside was packed in small magnet will repel the N pole pole, have alternating weak and strong magnetic field. As a result, move slowly past the strong points of the magnetic force will move the measuring instrument quickly and, cannot be measured, because.

Results (English) 2:

The inside of the bar magnet, small magnet have been packed in a way that repel the N pole S pole, where strong force and weak where there are alternately. For this reason, and it will move the quick measurement equipment, because there is a case that can not be measured past the strong magnetic force point, so that you move slowly.

Results (English) 3:

The interior of the bar magnet, the magnet in the form of small packed with each other when the N S pole pole, and the magnetic force is weak, there are alternately. Therefore, the measurement instrument to move quickly, so that a strong magnetic force can not be measured at the past is to move slowly.