This video shows a couple of methods you can use to test enhancement-mode MOSFETs. An N-channel device is used in this video, but the same procedure can be followed for P-channel by simply properly changing the polarity. The operation of the MOSFET as a switch is easily tested with just a DMM using the diode test function. Also, a very simple test circuit is shown that will give a bit more insight into the operation of the MOSFET.

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