Electronics and Communication Engineering - Analog Electronics

21. 

IN 3242 is a

A. P-N-P transistor
B. N-P-N transistor
C. UJT
D. semi-conductor diode

Answer: Option D

Explanation:

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22. 

Low frequency response of amplifier is mainly limited by

A. input capacitor
B. bypass capacitor
C. output capacitor
D. biasing capacitor

Answer: Option B

Explanation:

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23. 

With negative feedback the closed loop gain is always less than open loop gain.

A. True
B. False

Answer: Option A

Explanation:

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24. 

As compared to a bipolar transistor, a JFET is

A. highly sensitive to changes in input voltage
B. more sensitive to changes in input voltage
C. less sensitive to changes in input voltage
D. equally sensitive to changes in input voltage

Answer: Option C

Explanation:

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25. 

In a bistable multivibrator, commutating capacitors are used to

A. increase the base storage charge
B. provide ac coupling
C. increase the speed of response
D. alter the frequency of the output

Answer: Option C

Explanation:

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