Question

for vgs = 0 v, the drain current becomes constant when vds exceeds
select one:
a. 0
b. vp
c. vdd
d. cutoff

Explanation:

In field - effect transistors, when \(V_{GS} = 0\) V, the drain current (\(I_D\)) enters the saturation (constant current) region when \(V_{DS}\) exceeds the pinch - off voltage (\(V_p\)). Option a (0) is incorrect as at \(V_{DS}=0\), the current behavior is different. Option c (\(V_{DD}\)) is a supply voltage and not related to the condition for \(I_D\) to become constant. Option d (cutoff) is a region where the drain current is approximately zero, not a voltage value that determines the constant current region. So the correct answer is b. Vp.

Answer:

b. Vp