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ZX-69F0EF32282023年10月A卷练习 · 第 18 题
2023年10月A卷练习 · 原库模块 1 · Q18 原库参考解析
If a circuit consists of resistors connected in series, its resistance, in ohms, is equal to the sum of the resistances, in ohms, of all these resistors. A particular circuit consists of x identical resistors of type X and y identical resistors of type Y, which are connected in series. The resistance R, in ohms, of this circuit is given by the equation R = 13x +15y . Which of the following is the best interpretation of 13 in this context?
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