Electronics and Communication Engineering - Electronic Devices and Circuits

26. 

Which of the following is known as insulated gate FET?

A. JFET
B. MOSFET
C. Both JFET and MOSFET
D. None of the above

Answer: Option B

Explanation:

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27. 

Assertion (A): The hybrid p model of a transistor can be reduced to h parameter model and vice versa.

Reason (R): Hybrid p and h parameter models are interrelated as both of them describe the same device.

A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true

Answer: Option A

Explanation:

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28. 

Which impurity atom will give p type semiconductor when added to intrinsic semiconductor?

A. Phosphorus
B. Boron
C. Arsenic
D. Antimony

Answer: Option B

Explanation:

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29. 

An insulator will conduct when the

A. voltage applied is more than the breakdown voltage
B. temperature is raised to very high level
C. either (a) or (b) above
D. none of the above

Answer: Option C

Explanation:

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30. 

Zener breakdown occurs

A. due to rapture of covalent band
B. mostly in germanium junctions
C. in lightly doped junctions
D. due to thermally generated minority carriers

Answer: Option A

Explanation:

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