我依据罗兰实验的原理,设计了一个比较简单的直接证实“磁现象的电本质”装置,还可以直接验证安培定则等。现介绍如下。将塑料杯(瓶)(如塑料茶杯、塑料药瓶、装乳白胶的塑料瓶等)底的圆心对准电动机(最好是交流电动机,如玩具电机就可以用)主轴的固定好,并将电动机固定在支架上;将一小块兽毛皮的毛向外粘在支架上,作为毛刷。如图所示。 According to the principle of Roland’s experiment, I designed a relatively simple device that directly verifies the “electric essence of magnetic phenomena” and can also directly verify the ampere rule. Now introduced as follows. Place the center of the circle at the bottom of the plastic cup (bottle) (such as plastic cup, plastic bottle, plastic bottle, etc.) on the motor (preferably an AC motor, such as a toy motor) The motor is fixed on the bracket; the hair of a small animal fur sticks outward to the bracket as a brush. as the picture shows.