• 2021-04-14
    假设一电子以某一速度垂直射入磁感应强度为1T的匀强磁场中,在洛伦兹力的作用下作匀速率圆周运动,则等效圆电流的大小为I= http://edu-image.nosdn.127.net/_PhotoUploadUtils_b12941f3-0b16-4862-9c7b-3b3047b65785.pngA。(已知:电子的电荷量http://edu-image.nosdn.127.net/_PhotoUploadUtils_5bd83a9d-40f2-4844-94bf-6af49869ea6f.png,电子的质量http://edu-image.nosdn.127.net/_PhotoUploadUtils_9a6856c5-f4d9-48d9-a7a9-21988c3b3dd6.png,http://edu-image.nosdn.127.net/_PhotoUploadUtils_5e3290a6-5840-48a7-a307-277134962c32.png;答案保留到小数点后两位,如1.36)
  • 举一反三