基于phyphox软件验证电流磁效应

Verification of Current Magnetic Effect Based on Phyphox Software

电流产生磁场,是高中生认知上的一次飞跃,但由于仪器设备,缺乏定量实验的支撑.借助智能手机软件phyphox中的磁力计模块,验证电流产生磁场与电流大小、与导线距离的关系,即电流越大,距离导体越近,电流产生磁场越强.在此基础上,以电流磁效应为基础,间接测出通过导体的电流.这对物理教学有很大的帮助,实际生活中也有一定作用.

Electric current produces a magnetic field.Knowing this principle is a cognitive leap for high school students,but due to the equipment,it lacks the support of quantitative and in tuitive experiments.With the help of the magnetometer module in the smartphone software phyphox,the relation ship between the magnetic field generated by the current and the magnitude of the current and the distance from the wire is verified:the greater the current,the closer the distance to the conductor,the stronger the magnetic field generated by the current.On this basis,the current passing through the conductor is indirectly measured based on the magnetic effect of the current.This is of great help to physics teaching,and also has a certain effect in actual daily life.