E6A09 - Amateur Extra Class

E6A09 : What is a depletion-mode field-effect transistor (FET)?
A An FET that exhibits a current flow between source and drain when no gate voltage is applied
B An FET that has no current flow between source and drain when no gate voltage is applied
C An FET that exhibits very high electron mobility due to a lack of holes in the N-type material
D An FET for which holes are the majority carriers
Correct Answer: An FET that exhibits a current flow between source and drain when no gate voltage is applied