Transistor working | Class 12 (India) | Physics | Khan Academy

Let's explore what transistors are and they (more specifically a Bipolar junction transistor) work as an amplifier.
Class 12 Semiconductors: We cannot imagine our life without computers today. But what makes a computer tick? What's making this technology grow at such an exponential rate? It's all due to semiconductors. As unbelievable as that might sound, altering the properties of semiconductors allows us to build these computers. In this topic, we will explore the world of semiconductors. It's a journey from what semiconductors are all the way to creating building blocks of these computers.

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Created by Mahesh Shenoy

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[shrutishankar]

I don't understand how the recombined electrons would give rise to base current..

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[niranjan]

Sir, at 04:55, you mentioned that no amount of supplied voltage would cause flow of electrons due to the presence of the barrier in the PN Junction. But a PN Junction is weakened by increasing voltage, right? So doesn't a weak barrier result in more flow of electrons sir?
Kindly clarify