Impedance is related to resistance-which, as generations of schoolchildren have had drummed into them, is the ratio of voltage to current.
阻抗是对电的抵抗力——小孩子也略有所知，是电压和电流强度的比值。
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We can also see that because damping factor is a ratio that requires the load impedance to compute it must be stated against some known impedance to be meaningful.
We can also see that because damping factor is a ratio that requires the load impedance to compute, it must be stated against some known impedance to be meaningful.