中文摘要：

从数理逻辑、事件的独立性和指数分布函数等三个角度对电路问题进行分析,介绍不同数学知识在电路问题中的应用.

英文摘要：

In this paper, circuit problems are analyzed respectively by propositional logic, independent events and exponential random variables. We wish to illustrate the use of different mathematical branches in analyzing circuit problems.