How do transistors amplify the current?

Maddy's picture


Joined: May 28, 2015

Replies: 341
How do transistors amplify the current?
June 9, 2015 - 9:03pm

I am using transistors in some circuit and wondering what are properties which make transistors to amplify the current.

Vj's picture


Joined: May 20, 2016

Replies: 3

Transistor does not actually amplify the magnitude of current. When a small voltage is applied to the Base of NPN transistor, it "allows" the Larger amount of current to be passed, through the Collector to the Emitter. 

junaid shahid's picture


Joined: Nov 23, 2016

Replies: 12


Dear there are many types of transistors which are used for the amplify purpose. i.e NPN or PNP etc.

Each have different methodology to operate and execute the operation.