Exercise: Analog Electronics

Questions for: Analog Electronics

Assertion (A): An op-amp amplifier can amplify dc signal

Reason (R): An op-amp amplifier is a direct coupled amplifier

A:
Both A and R are correct and R is correct explanation for A
B:
Both A and R are correct but R is not correct explanation for A
C:
A is correct R is wrong
D:
A is wrong R is correct
Answer: A
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Consider the following statements
A totem pole configuration used in the output stage if an op-amp has the advantage of using
  1. Only n-p-n BJTs
  2. Complementary symmetrical pair of transistors
  3. Only one transistor
Which of these statements is/are correct?
A:
1 alone
B:
2 alone
C:
3 alone
D:
1 and 3
Answer: A
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In figure gain bandwidth product is
A:
200 Hz
B:
200 MHz
C:
200 kHz
D:
2 MHz
Answer: C
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The minimum gate source voltage that creates the n-type inversion layer is called
A:
cut off voltage
B:
on voltage
C:
threshold voltage
D:
zener voltage
Answer: C
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In an RC-coupled amplifier for improving the low frequency response
A:
lower RL is provided
B:
more bias is used
C:
less gain is provided
D:
higher CC is used
Answer: D
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