Z

z Abbreviation for the prefix zepto (10–21).

Z Abbreviation for prefix zetta (1021).

Z Symbol for impedance.

Zo Symbol for characteristic impedance; i.e., the ratio of the voltage to the current at every point along a transmission line on which there are no standing waves.

Zamboni pile A primary electrochemical system capable of supplying very high electrical potentials in comparatively little space. The anode material in the pile is aluminum, and the cathode is manganese dioxide and carbon black. The electrolyte in the chemical system is aluminum chloride.

Z-angle meter An electronic instrument for measuring impedance in ohms and phase angle in electrical degrees.

zap In a computer, to wipe out, delete.

Z-axis modulation Also called beam ...

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