In what units is impedance measured?

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Study for the Basic Electricity Exam. Prepare with detailed multiple choice questions, each question includes hints and explanations. Get ready for success!

Multiple Choice

In what units is impedance measured?

Explanation:
Impedance is the total opposition to current in an AC circuit, combining resistance and reactance. Because it relates voltage to current with V = I Z, its unit is the ohm, defined as one volt per one ampere. In AC circuits, impedance can have magnitude and phase, but the unit remains ohms. Henries measure inductance, volts measure electrical potential, and amperes measure current, so they’re not the unit used for impedance.

Impedance is the total opposition to current in an AC circuit, combining resistance and reactance. Because it relates voltage to current with V = I Z, its unit is the ohm, defined as one volt per one ampere. In AC circuits, impedance can have magnitude and phase, but the unit remains ohms. Henries measure inductance, volts measure electrical potential, and amperes measure current, so they’re not the unit used for impedance.

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