Electronic Devices - Oscillator Circuits

Exercise : Oscillator Circuits - Filling the Blanks
6.
What is the gain at the origin of the Nyquist plot?
Zero
A negative value
A positive value
Undefined
Answer: Option
Explanation:
No answer description is available. Let's discuss.

7.
Positive feedback results in ________.
decreased voltage gain
increased voltage gain
oscillation in the circuit
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

8.
In the Wien bridge oscillator with R1 = R2 = R and C1 = C2 = C, a ratio of R3 to R4 will provide sufficient loop gain for the circuit to oscillate.

0
0.5
1
2
Answer: Option
Explanation:
No answer description is available. Let's discuss.

9.
In the phase-shift oscillator, the operating frequency is determined by ________.
resistance only
capacitance only
LC combinations
RC combinations
Answer: Option
Explanation:
No answer description is available. Let's discuss.

10.
In the Barkhausen criterion, the loop gain A is equal to ________.
200,000
0
1
Answer: Option
Explanation:
No answer description is available. Let's discuss.