For Enhancement MOSFET why the threshold voltage absolute value be considered?

Thread Starter

skyline977

Joined Jan 14, 2021
29
For the below question:

1610968451463.png


Why did he take the absolute value for the threshold voltage as shown below?

2021-01-18.png



As far as I understand we plug in the values with their signs. Am I right?
 

neonstrobe

Joined May 15, 2009
145
It might help to draw the FET the right way round - we normally put positive voltages up top. Then you might see how the voltages relate.
Interesting symbol though. P channel MOSFET with no body. There are such things in the wild but they are not common.
 
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