Electronics and Communication Engineering - Analog Electronics

6. 

Astable multivibrator has

A. one stable state
B. two stable state
C. two quasi-stable states
D. one quasi stable state

Answer: Option C

Explanation:

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7. 

Most small signal transistors are

A. N-P-N, silicon, in a plastic package
B. P-N-P, silicon, in a plastic package
C. N-P-N, germanium in a metallic case
D. P-N-P, germanium in a metallic case

Answer: Option A

Explanation:

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8. 

A FET is a better clapper than a BJT because it has

A. lower off-set voltage
B. higher series ON resistance
C. lower input current
D. higher input impedance

Answer: Option A

Explanation:

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9. 

The input gate current of FET is closer to

A. few amperes
B. few milli amperes
C. few microamperes
D. negligibly smaller value

Answer: Option D

Explanation:

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10. 

When a 1 V increase in gate voltage changes the drain current 10 mA in an FET, its gm equals

A. 10 μμ
B. 100 μμ
C. 1000 μμ
D. 10000 μμ

Answer: Option D

Explanation:

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