How to test Diode without using multimeter

In this video, I have shown how to check a diode just using a 9volt battery and a LED. Here to test the diode I have not used any multimeter so this video will help you to test any diode without using any multimeter.

If you follow the steps shown in the video to test a diode without using a multimeter It's very easy to test whether a diode is working or not in a circuit.

In this test circuit, I have also explained how to check the polarity of the diode and how to calculate the resistance value in circuit which is very important.

#DiodeTesting #TechStudyCell

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