How Does a Transistor Work?
How does a transistor work? Our lives depend on this device. Support Veritasium on Patreon: http://bit.ly/VePatreon Subscribe to Veritasium - it's FREE! http://bit.ly/YSWpWm When I mentioned...
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In this phone, there are nearly 100 million transistors, in this computer there's overa billion. The transistor is in virtually every electronic device we use: TV's, radios,Tamagotchis.But how does it work?Well the basic principle is actually incredibly simple. It works just like this switch, soit controls the flow of electric current.It can be off, so you could call that the zero state or it could be on, the one state.And this is how all of our information is now stored and processed, in zeros and ones,little bits of electric current. But unlike this switch, a transistor doesn't have anymoving parts. And it also doesn't require a human controller. Furthermore, it can beswitched on and off much more quickly than I can flick this switch. ...
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In this phone, there are nearly 100 million transistors, in this computer there's overa billion. The transistor is in virtually every electronic device we use: TV's, radios,Tamagotchis.But how does it work?Well the basic principle is actually incredibly simple. It works just like this switch, soit controls the flow of electric current.It can be off, so you could call that the zero state or it could be on, the one state.And this is how all of our information is now stored and processed, in zeros and ones,little bits of electric current. But unlike this switch, a transistor doesn't have anymoving parts. And it also doesn't require a human controller. Furthermore, it can beswitched on and off much more quickly than I can flick this switch. ...
