If an NMOS is degenerated by a resistor in series with the source, what will happen to the output resistance?(a) It increases(b) It decreases(c) It remains same(d) Cannot be determinedI had been asked this question during a job interview.I'd like to ask this question from MOSFET Amplifier with CS Configuration topic in portion FET Amplifiers of Analog Circuits

If an NMOS is degenerated by a resistor in series with the source, wha

1.	If an NMOS is degenerated by a resistor in series with the source, what will happen to the output resistance?(a) It increases(b) It decreases(c) It remains same(d) Cannot be determinedI had been asked this question during a job interview.I'd like to ask this question from MOSFET Amplifier with CS Configuration topic in portion FET Amplifiers of Analog Circuits
Answer» The correct option is (a) It increases The explanation: This is a fact DERIVED by performing the small signal analysis of a DEGENERATED C.S. stage. The output impedance increases if we degenerate the MOSFET and this further increases the linearity of OPERATION.

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