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Electronics and Communication Engineering - Analog Electronics

Exercise : Analog Electronics - Section 17
11.
Which of the following circuit does not need a coupling capacitor?
Resistance loaded
Transformer coupled
Impedance coupled
Single tuned
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.

Assertion (A): A large negative feedback is deliberately introduced in an amplifier to make its gain independent of variation is in parameters of active device and other components.

Reason (R): A large negative feedback results in a high value of return difference compared to unity which makes the feedback gain inversely proportional to feedback factor.

Both A and R are correct and R is correct explanation for A
Both A and R are correct but R is not correct explanation for A
A is correct R is wrong
A is wrong R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
In case of a transistor amplifier the emitter resistance Re is removed
the gain of the amplifier will reduce
heat sink will not be required
Q-point will become unstable
base to emitter function will be less forward biased
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
In oscillators class C operation is preferred because
is most efficient
has frequency stability
gives larger output
it produces nearly square waves
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
In a common emitter circuit all voltages are measured with respect to
base
emitter
collector
base or collector
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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