![In the circuit shown below, all transistors are n-channel enhancement mode MOSFETs. They are identical and](https://www.gkseries.com/blog/wp-content/uploads/2023/08/In-the-circuit-shown-below-all-transistors-are-n-channel-enhancement-mode-MOSFETs.-They-are-identical-and-.jpg)
Q. In the circuit shown below, all transistors are n-channel enhancement mode MOSFETs. They are identical and are biased to operate in saturation mode. Ignoring channel length modulation, the output voltage Vout is __________.
![](https://www.gkseries.com/blog/wp-content/uploads/2023/08/image-49.png)
Ans: 4
Sol:
By using the current mirror concept current flow in 4 kΩ branch will be 1 mA.
![](https://www.gkseries.com/blog/wp-content/uploads/2023/08/Screenshot-628.png)