Amateur Extra Class: 2020–2024
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E6A05:

How does DC input impedance at the gate of a field-effect transistor compare with the DC input impedance of a bipolar transistor?

  1. They are both low impedance
  2. An FET has lower input impedance
  3. An FET has higher input impedance
  4. They are both high impedance
E6A01 E6A02 E6A03 E6A04 E6A05 E6A06 E6A07 E6A08 E6A09 E6A10 E6A11 E6A12