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impedanca

The opposition to power flow in an AC circuit. Also, any device that introduces such opposition in the form of resistance, reactance, or both. The impedance of a circuit or device is measured as the ratio of voltage to current, where a sinusoidal voltage and current of the same frequency are used for the measurement; it is measured in ohms.

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Actividade/ Sector: Electrical equipment Category: Electricity

električne opasnosti

A dangerous condition such that contact or equipment failure can result in electric shock, arc flash burn, thermal burn, or blast.

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