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The effective channel length of a MOSFET in saturation decreases with increase in which of the following parameter?

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The effective channel length of a MOSFET in saturation decreases with increase in which of the following parameter?

(a) Gate voltage

(b) Drain voltage

(c) Source voltage

(d) Body voltage

The question was asked during an interview.

Enquiry is from The Insulated-Gate FET(MOSFET) topic in chapter Field-Effect Transistors of Electronic Devices & Circuits

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Correct option is (b) Drain voltage

Explanation: The channel length of a MOSFET in saturation decreases with increase in drain voltage of the MOSFET.

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