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Вопрос 319

What core material property determines the inductance of an inductor?

  1. Permittivity
  2. Resistance
  3. Reactivity
  4. PermeabilityПравильный ответ

Объяснение

Permeability measures how readily a material carries magnetic flux, and inductance is directly proportional to it, as in L = μ₀ × μr × N² × A / l for a uniformly wound core. Permittivity is the corresponding property for electric fields in capacitors, resistance is not what sets inductance, and reactivity is not a material parameter.

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Вопрос 319: What core material property determines the inductance of an… · FCC Amateur Extra Class (Element 4) · Questena