A \(\mathrm{p} \text-\)type extrinsic semiconductor is obtained when Germanium is doped with:
1. antimony 2. phosphorous
3. arsenic 4. boron
Subtopic:  Types of Semiconductors |
 74%
From NCERT
NEET - 2023
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The electron concentration in an \(\mathrm{n\text-}\)type semiconductor is the same as the hole concentration in a \(\mathrm{p\text{-}}\)type semiconductor. An external field (electric) is applied across each of them. Compare the currents in them.

1. current in \(\mathrm{n\text-}\)type \(>\) current in \(\mathrm{p\text{-}}\)type.
2. no current will flow in \(\mathrm{p\text{-}}\)type, current will only flow in \(\mathrm{n\text-}\)type.
3. current in \(\mathrm{n\text-}\)type \(=\) current in \(\mathrm{p\text{-}}\)type.
4. current in \(\mathrm{p\text{-}}\)type \(>\) current in \(\mathrm{n\text-}\)type.
Subtopic:  Types of Semiconductors |
 51%
From NCERT
NEET - 2021
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

An intrinsic semiconductor is converted into an \(\mathrm{n\text{-}}\)type extrinsic semiconductor by doping it with: 

1. phosphorous 2. aluminium
3. silver 4. germanium
Subtopic:  Types of Semiconductors |
 80%
From NCERT
NEET - 2020
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

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For a \(\mathrm{p}\text{-}\)type semiconductor, which of the following statements is true?

1. Electrons are the majority carriers and pentavalent atoms are the dopants.
2. Electrons are the majority carriers and trivalent atoms are the dopants.
3. Holes are the majority carriers and trivalent atoms are the dopants.
4. Holes are the majority carriers and pentavalent atoms are the dopants.
Subtopic:  Types of Semiconductors |
 80%
From NCERT
NEET - 2019
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh