螺线管实验处理.doc

IM=0.8A VH-IS关系表IS(mA)V1V2V3V4VH41.11-1.081.22-0.961.092551.36-1.371.55-1.181.36561.61-1.651.87-1.381.627571.87-1.942.21-1.591.902582.21-2.212.54-1.792.187592.35-2.52.88-1.972.425102.59-2.753.22-2.142.675IS=0.8MA VH-IM关系表IMV1V2V3V4VH0.30.79-0.81.14-0.780.87750.41.06-1.071.41-1.051.14750.51.33-1.341.68-1.321.41750.61.59-1.61.94-1.591.680.71.86-1.872.21-1.851.94750.82.13-2.142.48-2.122.21750.92.4-2.412.75-2.392.487512.67-2.663.01-2.662.75IM=0.8AIS=8mAX1X2XV1V2V3V4VHB实验值B理论值相对误差00141.25-0.170.18-1.240.710.04 0.06 34.8%0.5013.51.69-0.580.58-1.681.13250.06 0.08 28.1%10131.96-0.870.89-1.791.37750.07 0.10 25.9%1.5012.52.08-0.970.98-2.071.5250.08 0.10 23.5%20122.13-1.071.07-2.121.59750.08 0.11 22.5%5092.22-1.131.14-2.211.6750.09 0.11 22.3%8062.2-1.151.16-2.21.67750.09 0.11 22.6%11032.21-1.141.14-2.21.67250.09 0.11 23.0%14002.19-1.151.16-2.191.67250.09 0.11 23.0%143-32.22-1.141.14-2.231.68250.09 0.11 22.5%146-62.2-1.161.15-2.211.680.09 0.11 22.5%149-92.2-1.121.12-2.211.66250.09 0.11 22.9%1412-122.12-1.081.07-2.141.60250.08 0.11 22.3%1412.5-12.52.08-1.010.99-2.11.5450.08 0.10 22.5%1413-131.97-0.920.9-21.44750.07 0.10 22.1%1413.5-13.51.8-0.710.68-1.821.25250.06 0.08 20.5%1414-141.42-0.350.31-1.460.8850.05 0.06 18.7%实验值计算磁场的公式是 式中VH是测量值，KH是仪器上的值，IS是给定值理论值计算磁场的公式是 由图可知，在x=14或-14处磁场强度B（0.04/0.05T）约为中心处磁场（B=0.09T）的一半实验总结此次实验，感觉最难的地方是实验的处理，花费了四个小时，尤其是磁场的理论值的计算，较为难处理。需要有清醒的头脑。同时，通过这次实验学会了在螺线管内磁场随位移变化的测量方法和理论的推导。对以后的学习有一定的指导意义思考题1. 带电粒子在磁场中受洛伦兹力作用发生偏转，在垂直于电流和磁场的方向有电荷的积累，就