73·STUDY

Extra exam question E6A10

Subelement E6, CIRCUIT COMPONENTS· Group E6A

E6A10

In Figure E6-1, which is the schematic symbol for an N-channel dual-gate MOSFET?

  • A.2
  • B.4 (correct answer)
  • C.5
  • D.6

WhySymbol 4 in Figure E6-1 is the schematic symbol for an N-channel dual-gate MOSFET. In Figure E6-1, symbol 4 shows two gate leads (G1 and G2) feeding an insulated gate bar with the arrow pointing inward toward the channel, the standard symbol for an N-channel dual-gate MOSFET, an inward-pointing arrow indicating N-channel and the separate insulated-gate bar distinguishing a MOSFET from a junction FET, answer B. Symbol 2 is the single-gate N-channel MOSFET, symbol 5 is the P-channel dual-gate MOSFET (arrow pointing outward), and symbol 6 is a single-gate N-channel JFET (no separate insulated-gate bar), none of which matches the dual-gate MOSFET being asked for.

Schematic E6-1 showing four numbered field-effect transistor symbols for a symbol-identification question, including a P-channel junction FET and an N-channel dual-gate MOSFET.

Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.

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