Home › MCQs › Electrical Engineering › Question #2157
Back to Questions
Electrical Engineering QUESTION #2157
Question 1
For an n-channel MOSFET in saturation: $I_D = \frac{k_n}{2}(V_{GS}-V_{th})^2$. Given $V_{th} = 2\,\text{V}$, $k_n = 1\,\text{mA/V}^2$, $V_{GS} = 5\,\text{V}$, find $I_D$.
  • $4.5\,\text{mA}$✔️
  • $12.5\,\text{mA}$
  • $9\,\text{mA}$
  • $2\,\text{mA}$
Correct Answer Explanation
$I_D = \frac{1}{2}(1)(5-2)^2 = 0.5 \times 9 = 4.5\,\text{mA}$.