FCC Question Pool Review

Amateur Extra Class (Element 4) • 2024-2028

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Question E6A05

From subelement E6 - E6A

E6A05
Answer: C

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

AThey are both low impedance
BAn FET has lower input impedance
CAn FET has higher input impedance
DThey are both high impedance