impedanceとは何ですか？
impedanceとは何ですか？
- A measure of the total opposition to current flow in an alternating current circuit, made up of two components, ohmic resistance and reactance, and usually represented in complex notation as Z = R + iX, where R is the ohmic resistance and X is the reactance.
- An analogous measure of resistance to an alternating effect, as the resistance to vibration of the medium in sound transmission.