Electronics and Communication Engineering - Electronic Devices and Circuits - Discussion
Discussion Forum : Electronic Devices and Circuits - Section 1 (Q.No. 15)
15.
In an n-p-n transistor, the majority carriers in the base are
Answer: Option
Explanation:
Emitter is n type and emits electrons which diffuse through the base.
Discussion:
34 comments Page 3 of 4.
Vishal gupta said:
1 decade ago
Answer must be holes according to question. So answer should be B part.
Rahul said:
1 decade ago
Answer is holes. As in p type holes is majority.
Amir said:
1 decade ago
In an NPN transistor, when positive bias is applied to the base emitter junction, the equilibrium is disturbed between the thermally generated carriers and the repelling electric field of the n-doped emitter depletion region.
This allows thermally excited electrons to inject from the emitter into the base region. These electrons diffuse through the base from the region of high concentration near the emitter towards the region of low concentration near the collector.
The electrons in the base are called minority carriers because the base is doped p-type, which makes holes the majority carrier in the base.
This allows thermally excited electrons to inject from the emitter into the base region. These electrons diffuse through the base from the region of high concentration near the emitter towards the region of low concentration near the collector.
The electrons in the base are called minority carriers because the base is doped p-type, which makes holes the majority carrier in the base.
Santhosh said:
1 decade ago
In an npn transistor, majority charge carriers in base is holes and minority charge carriers are electrons.
Manojbansal said:
1 decade ago
In an NPN transistor, majority charge carriers in Base is Hole.
Dhumal said:
9 years ago
How is it possible?
Because three is no any condition of biasing in question, so the answer will be holes.
Because three is no any condition of biasing in question, so the answer will be holes.
Savan Kalal said:
1 decade ago
When transistor is not working then majority charge carriers are always holes so you must be clear with this question that how you are going to be answer of this question.
Pavan said:
8 years ago
No, it's wrong.
Because they are not intrinsic semiconductor so hey will have some potential to move but not exceeding the barrier potential.
@Esk Kishore.
Its hole is majority carriers in the base.
Because they are not intrinsic semiconductor so hey will have some potential to move but not exceeding the barrier potential.
@Esk Kishore.
Its hole is majority carriers in the base.
Sachin said:
8 years ago
Yeah, The given answer is wrong because in NPN transistor base is p and in p base, the holes are majority carrier.
Aman said:
8 years ago
P N P - means; + - +, Hole-Electron-Hole, Emitter-Base-Collector.
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