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cse • paper_2 • solid_state_electronicscse-2021-subject-08-004

Field-effect transistor — UPSC CSE 2021 Physics PYQ

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Calculate the pinch-off voltage for n-channel silicon FET with a channel width of 6 \times 10^{-4}\ \mathrm{cm} and a donor concentration of 10^{15}\ \mathrm{cm}^{-3}. Given that dielectric constant of silicon is 12.

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