Answer
416.1k+ views
Hint: A transistor is an extrinsic semiconductor. That is, the emitter, collector and base is made of extrinsic semiconductor. The emitter and collector region of a transistor is heavily doped and the base of a transistor is lightly doped. Thus compared to emitter and collector base is made of thin layered semiconductor.
Complete answer:
A transistor is a semiconductor device. It usually has three terminals. That is, emitter, base and collector. It is a three terminal device which has two p-n junctions. These two p-n junctions are placed back to back in a single piece of semiconductor material. Mainly there are two types of transistors. They are bipolar junction transistor and field effect transistor. An npn transistor is formed by sandwiching p-type material between two n-type materials. Similarly, a pnp transistor is formed by sandwiching n-type material between two p-type materials. BJT is a three terminal device. They are emitter, base and collector.
Emitter region usually supplies charge carriers to other two regions. Usually, the emitter is heavily doped. In npn transistors, the emitter supplies free electrons to the junction. Collector is usually used to collect charge carriers. Collector is the largest part of a transistor rather than the emitter and base. The doping of the collector is intermediated between the emitter and base.
Hence, option (D) is correct.
Note:
For normal operations of a transistor the emitter-base junction is forward biased, so that the junction offers low resistance to the flow of current. The collector-base junction is reverse biased, so that the junction offers high resistance to the flow of current. The emitter and collector region of a transistor is heavily doped and the base of a transistor is lightly doped. Thus compared to emitter and collector base is made of thin layered semiconductor.
Complete answer:
A transistor is a semiconductor device. It usually has three terminals. That is, emitter, base and collector. It is a three terminal device which has two p-n junctions. These two p-n junctions are placed back to back in a single piece of semiconductor material. Mainly there are two types of transistors. They are bipolar junction transistor and field effect transistor. An npn transistor is formed by sandwiching p-type material between two n-type materials. Similarly, a pnp transistor is formed by sandwiching n-type material between two p-type materials. BJT is a three terminal device. They are emitter, base and collector.
![seo images](https://www.vedantu.com/question-sets/a90cdd46-cddd-471a-a7c5-aa55925c521b3819971070629727055.png)
Emitter region usually supplies charge carriers to other two regions. Usually, the emitter is heavily doped. In npn transistors, the emitter supplies free electrons to the junction. Collector is usually used to collect charge carriers. Collector is the largest part of a transistor rather than the emitter and base. The doping of the collector is intermediated between the emitter and base.
Hence, option (D) is correct.
Note:
For normal operations of a transistor the emitter-base junction is forward biased, so that the junction offers low resistance to the flow of current. The collector-base junction is reverse biased, so that the junction offers high resistance to the flow of current. The emitter and collector region of a transistor is heavily doped and the base of a transistor is lightly doped. Thus compared to emitter and collector base is made of thin layered semiconductor.
Recently Updated Pages
Mark and label the given geoinformation on the outline class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
When people say No pun intended what does that mea class 8 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Name the states which share their boundary with Indias class 9 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give an account of the Northern Plains of India class 9 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Change the following sentences into negative and interrogative class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Advantages and disadvantages of science
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Bimbisara was the founder of dynasty A Nanda B Haryanka class 6 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
10 examples of evaporation in daily life with explanations
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
How do you graph the function fx 4x class 9 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference Between Plant Cell and Animal Cell
![arrow-right](/cdn/images/seo-templates/arrow-right.png)