Tunnel diode is a
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To obtain a P-type semiconductor-
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Which among the following is most helpful in energy savings?
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Assertion (A) Light Emitting Diode (LED) emits spontaneous radiation.
Reason (R) LED are forward biased p - n junction.
Reason (R) LED are forward biased p - n junction.
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When does a break down occur in junction?
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In a n-type semiconductor
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Zener diode is used as
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NPN transistors are preferred to PNP transistors because they have
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The majority charge carriers in a p-type semiconductor are
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Where is a transistor most likely to be found?
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When donor type impurity is added to the semiconductor system. Then
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Assertion (A) An N-type semiconductor has a large number of electrons but still it is electrically neutral.
Reason (R) An N-type semiconductor is obtained by doping an intrinsic semiconductor with a pentavalent impurity.
Reason (R) An N-type semiconductor is obtained by doping an intrinsic semiconductor with a pentavalent impurity.
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Which of the following is widely used in making semiconductor chips?
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Doping in semi-conductor glossary is:
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Match the following.
| List-I | List-II |
| a. Germanium at 0 K | 1. n-type semiconductor |
| b. Germanium at room temperature | 2. p-type semiconductor |
| c. Germanium doped with indium | 3. Insulator |
| d. Germanium doped with arsenic | 4. Intrinsic semiconductor |
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The purpose of the amplifier is to:
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Which of the following is not a semiconductor?
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Integrated circuits are made up of which of the following?
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The diode is used as a . . . . . . . .
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The term LASER stand for
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