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Match each parameter with the device it belongs to.

List I

A. Pinch-off voltage

B. Threshold voltage

C. Current gain

List II

P. Junction field effect transistor

Q. Enhancement MOSFET

R. Bipolar transistor

Select the correct match.

  • A.A-R, B-Q, C-P
  • B.A-P, B-R, C-Q
  • C.A-P, B-Q, C-R
  • D.A-Q, B-P, C-R

Answer: C

The pairing is A-P, B-Q, C-R. Each parameter presupposes a structure: a channel that can be pinched off, an inversion layer that appears above a threshold, or a base current that is amplified. Recognising which structure a parameter assumes is a quick way to place an unfamiliar specification in the right family.

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