| 惠斯通电桥电路中耗散功率的极值问题 |
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| 引用本文： | 邵建新. 惠斯通电桥电路中耗散功率的极值问题[J]. 石河子大学学报(自然科学版), 2006, 24(6): 790-792 |
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| 作者姓名： | 邵建新 |
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| 作者单位： | 石河子大学师范学院物理系,新疆石河子,832003 |
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| 摘 要： | 依据最小作用量原理分析了惠斯通电桥电路，用Lagrange乘数法证明了惠斯通电桥电路中电流的实际分布必使电路的耗散功率取极小值。
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| 关 键 词： | 最小作用量原理 Lagrange乘数法 惠斯通电桥 极小值 基尔霍夫电压定律 |
| 文章编号： | 1007-7383(2006)06-0790-03 |
| 收稿时间： | 2006-07-10 |
| 修稿时间： | 2006-07-10 |
Extremum Problem in the Wheatstone Bridge Circuit |
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| SHAO Jian-xin. Extremum Problem in the Wheatstone Bridge Circuit[J]. Journal of Shihezi University(Natural Science), 2006, 24(6): 790-792 |
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| Authors: | SHAO Jian-xin |
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| Affiliation: | Department of Physics, Teachers College, Shihezi University, Shihezi, Xinjiang 832003, China |
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| Abstract: | Based on the Least-action principle,Wheatstone bridge circuit is analysed. By using the Lagrangian multiplier method, it proves that the voltaic actual distributing makes its dissipation power reach its minimum. |
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| Keywords: | Least-action principle Lagrange-multiplier method wheatstone bridge circuit Kirchhoff's voltage law |
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