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What is the gain at the origin of the Nyquist plot? A.
Zero
B. A negative value C. A positive value D. Undefined
7. Positive feedback results in ________. A.
decreased voltage gain
B. increased voltage gain C. oscillation in the circuit D. None of the above
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.
A.
0
B. 0.5 C. 1 D. 2
9. In the phase-shift oscillator, the operating frequency is determined by ________. A.
resistance only
B. capacitance only
C. LC combinations D. RC combinations
Zero
B. A negative value C. A positive value D. Undefined
7. Positive feedback results in ________. A.
decreased voltage gain
B. increased voltage gain C. oscillation in the circuit D. None of the above
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.
A.
0
B. 0.5 C. 1 D. 2
9. In the phase-shift oscillator, the operating frequency is determined by ________. A.
resistance only
B. capacitance only
C. LC combinations D. RC combinations
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