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Pregunta 192

What is the unit of impedance?

  1. Volt
  2. Ampere
  3. Coulomb
  4. OhmRespuesta correcta

Explicación

Impedance is opposition to current, so like resistance it is expressed in ohms even though it includes reactance as well. Volts and amperes measure the driving force and the flow, not the opposition.

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Pregunta 192: What is the unit of impedance? · FCC Technician Class (Element 2) · Questena