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计算题:一个U220V的中间继电器,线圈电阻R1为6.8Ω。运行时需串入R2为2kΩ

题型:问答题 简答题

题目:

计算题:一个U220V的中间继电器,线圈电阻R1为6.8Ω。运行时需串入R2为2kΩ的电阻,试计算该电阻的功率。

答案:

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参考答案:潜叶虫;负泥虫

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