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سؤال 272

What parasitic characteristic causes electrolytic capacitors to be unsuitable for use at RF?

  1. Skin effect
  2. Shunt capacitance
  3. Inductanceپاسخ درست
  4. Dielectric leakage

توضیح

Electrolytic capacitors are built from long rolled strips of foil and separator, which behave like a coil and give the part substantial series inductance. That inductance makes the capacitor self-resonant at a low frequency, above which it behaves as an inductor instead.

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شروع تمرین
سؤال 272: What parasitic characteristic causes electrolytic… · FCC Amateur Extra Class (Element 4) · Questena