用数值积分法研究圆台形密绕螺线管的自感系数,图示和讨论自感系数L随螺线管尺寸和形状(即h和a)的变化关系,并列出一些具体数值以便查用.%The self-inductance for the tightly solenoid investigated. The h and a dependences of the self-inductance of the frustum of a cone is numerically are plotted and discussed. We have given some concrete numerical values in order that we may use better .
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