impedance
/ɪmˈpiːdəns/noun
1- the effective resistance of an electric circuit or component to alternating current, arising from the combined effects of ohmic resistance and reactance阻抗。参见ACOUSTIC ɪMPEDANCE.
1.1
- Impedance is usually expressed as a complex quantity Z = R + jX, where R is resistance, X is reactance, and j is the imaginary square root of -1.阻抗一般以复量Z = R + jX 表示, 其中R 为电阻, X 为电抗, j 为-1的虚数平方根。