Figure 1 The equation for g m is given in (b).
-Refer to Figure 1. Assume VGS = -1 V. The expected VDS is
A)4.2 V
B)5.2 V
C)6.2 V
D)3.2 V

Question

Figure 1 The equation for g m is given in (b).
-Refer to Figure 1. Assume VGS = -1 V. The expected VDS is
A)4.2 V 
B)5.2 V 
C)6.2 V 
D)3.2 V

Quizplus · Accepted Answer

Given VGS = -1 V, the MOSFET is in the cutoff region because VGS is less than the threshold voltage (Vth), which is typically around 0.7 V for enhancement-mode NMOS transistors. In cutoff, the MOSFET acts like an open circuit, so VDS will be equal to VDD, which is 4.2 V in this scenario.

Figure 1 the Equation for Gm is Given in (B)

Figure 1 the Equation for G_mis Given in (B)