Determine the output impedance with feedback for a voltage-series feed – McqOptions

MCQOPTIONS

1.	Determine the output impedance with feedback for a voltage-series feedback having A = –100, R = 15 k, Ro = 20 k, and a feedback of = –0.25.
A.	0.2 k
B.	392.16
C.	1.82 k
D.	769.23
Answer» E.

Discussion

No Comment Found

Related MCQs

In the Wien bridge oscillator with R = R = R and C = C = C, a ratio of R to R will provide sufficient loop gain for the circuit to oscillate.
For a Wien-bridge oscillator, resonance occurs when V/V = 1.
An amplifier is stable if the absolute magnitude of A is ________.
In the Colpitts oscillator, the elements X and X are ________ and X is a(n) ________.
In a Hartley oscillator, the elements X and X are ________ and X is a(n) ________.
With feedback, , the overall gain of the circuit is reduced by a factor ________ where A is the gain without the feedback.
Calculate the value of C = C for the Wien bridge oscillator to operate at a frequency of 20 kHz. Assume R = R = 50 k and R = 3R = 600?
Only the condition A = ________ must be satisfied for self-sustained oscillations to result.
At what phase shift is the magnitude of A at its maximum in the Nyquist plot?
Referring to this figure, calculate the voltage gain without feedback for the following circuit values: R = 4 k, R = 1 k, R = 15 k, and g= 5000 μS.