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物理天平横梁上游码的分度值为20毫克。使用游码的测量范围是0——1000毫克。在选定磁场的条件下,适当地选取垂直于磁场方向的通电导线长度l和电流强度I,使安培力的变化范围在0——1000毫克力(0——9.8×10~(-3)牛)之间。这样就可以很方便地演示安培力F跟电流强度I和在磁场中的导线长度l的正比关系。下面介绍一下具体做法。
The fractional value of the upstream code of the physical balance beam is 20 milligrams. The measurement range using the rider is 0 - 1000 mg. Under the condition of the selected magnetic field, the length l of the energized wire perpendicular to the direction of the magnetic field and the current intensity I are properly selected so that the range of the Ampere force is 0 to 1000 milligrams (0 to 9.8×10~(-3)). Between cattle). This makes it easy to demonstrate the proportional relationship between the Ampere force F and the current intensity I and the length l of the wire in the magnetic field. Here are some specific practices.