Questenaتمرینی که نشان می‌دهد بعد چه چیزی را مرور کنید
سؤال 192

What is the unit of impedance?

  1. Volt
  2. Ampere
  3. Coulomb
  4. Ohmپاسخ درست

توضیح

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.

ادامهٔ این آزمون

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