求题图4-28所示电路中电阻RL为何值时可获得最大功率?

<img src='https://img2.soutiyun.com/ask/2020-07-06/962893799329117.png' /><img src='https://img2.soutiyun.com/ask/2020-07-06/962893808339632.png' />

时间:2023-07-30 14:36:05

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