Electronics GK MCQ question and answer with solution

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Tunnel diode is a

A) High resistivity p-n junction diode B) Slow switching device C) Amplifier device D) Highly doped p-n junction diode

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

To obtain a P-type semiconductor-

A) The impurity having five valence is added B) Three valent impurities C) Both types of compounds D) None of these

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Answer & Solution

Answer: Option B

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Which among the following is most helpful in energy savings?

A) Incandescent bulb B) Fluorescent tube light C) Compact fluorescent lamp D) LED bulb

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Assertion (A) Light Emitting Diode (LED) emits spontaneous radiation.
Reason (R) LED are forward biased p - n junction.

A) Both A and R are true and R is the correct explanation of A B) Both A and R are true, but R is not the correct explanation of A C) A is true, but R is false D) A is false, but R is true

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Answer & Solution

Answer: Option A

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When does a break down occur in junction?

A) Under extreme temperature conditions B) With forward biased C) Under reverse biased D) Due to manufacture defects

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Answer & Solution

Answer: Option C

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In a n-type semiconductor

A) electrons are the only carriers B) holes are the only carriers C) electrons are the majority carriers and holes are the minority carriers D) None of the above

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Answer & Solution

Answer: Option C

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Zener diode is used as

A) Half wave rectifier B) Full wave rectifier C) AC voltage stabiliser D) DC voltage stabiliser

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Answer & Solution

Answer: Option C

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NPN transistors are preferred to PNP transistors because they have

A) low cost B) low dissipation energy C) capability of handing large power D) electrons having high mobility than holes

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Answer & Solution

Answer: Option D

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The majority charge carriers in a p-type semiconductor are

A) free electrons B) conduction electrons C) ions D) holes

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Answer & Solution

Answer: Option D

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Where is a transistor most likely to be found?

A) Wrist watch B) Fuse C) Hearing aid D) Fluorescent lamp

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Answer & Solution

Answer: Option C

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Electronics GK MCQ question and answer with solution | Physics Gk MCQs