E6A09

What is a depletion-mode field-effect transistor (FET)?

1. AAn FET that exhibits a current flow between source and drain when no gate voltage is applied
2. BAn FET that has no current flow between source and drain when no gate voltage is applied
3. CAn FET that exhibits very high electron mobility due to a lack of holes in the N-type material
4. DAn FET for which holes are the majority carriers

Pick an answer to check it.