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IFoS · Paper II · Solid State & Devicesifos-2021-subject-08-004

JFET — UPSC Physics Optional IFoS 2021 Paper II

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When is the channel of a JFET said to be pinched off ? Define the pinch-off voltage. Give the relationship between the pinch-off voltage, the saturation voltage and the gate-source voltage. Sketch the depletion region before and after pinch-off.

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