Question

When n-P-n transistor is used as an amplifier, then(a) electrons move from collector to emitter(b) electrons move from emitter to collector(c) electrons move from collector to base(d) holes move from emitter to collector

Answer 1

When forward bias is applied on n-p-n transistor, then it works as an amplifier in forward biased n-p-n transistor, electrons move from emitter to base and holes move from base to emitter.

Answer 2

In an electronic transistor,the amplifier is the main component which actually helps to amplify the voltage of the passing electricity.

And there are many types of transistors which are used due to the specific necessities of different electricial circuits.

Similarly, where n-P-n transistors are used to amplify the electrons from the emitter to collector.

That's why the correct answer of this question is option b.