PIR it stands for passive infrared. PIR sensors detect the infrared radiation from the object. PIR does not detect any heat radiatio...

We all know about SCR, BJT, MOSFET here we going to familiarize the different characters of each one. SCR It is also called thyrist...

It is the device which works on the principle of absorption of of light is phototransistor. Which is more sensitive than a pn photodiode. ...

We all know about the transistors they have most important role in electronic field. Here am going to explain about how the tr...

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