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Showing posts with label MOSFETS. Show all posts
Showing posts with label MOSFETS. Show all posts

How Smoke Detectors Work

Wednesday, March 28, 2012   , , , , , , , , , , , , , , , , , ,  
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Description :

Bill takes apart a smoke detector and shows how it uses a radioactive source to generate a tiny current which is disrupted when smoke flows through the sensor. He describes how a special transistor called a MOSFET can be used to detect the tiny current changes.


Smoke detectors are awesome! Does anybody else have that reaction when watching stuff like this? Let us know what you think. Discover the latest trending tech news here and subscribe on our RSS feed for straight updates to your inbox.

*by andreascy*

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