1.

The drain current of a MOSFET in saturation is given by ID=K(VGS-VP) (VGS-VP)
where k is a constant. Determine the magnitude of gm.

A. K(V<sub>GS</sub>-V<sub>T</sub>) (V<sub>GS</sub>-V<sub>T</sub>)/ V<sub>DS</sub>
B. 2K(V<sub>GS</sub>-V<sub>T</sub>)
C. I<sub>D</sub>/V<sub>GS</sub> V<sub>dS</sub>
D. K(V<sub>GS</sub>-V<sub>T</sub>) (V<sub>GS</sub>-V<sub>T</sub>)/ V<sub>GS</sub>
Answer» C. I<sub>D</sub>/V<sub>GS</sub> V<sub>dS</sub>


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