In a negative feedback amplifier, the output impedance is decreased – McqOptions

MCQOPTIONS

1.	In a negative feedback amplifier, the output impedance is decreased
A.	If the signal sampled is a voltage
B.	If the signal sampled is a current
C.	If the feedback signal is a voltage
D.	If the feedback signal is a current
Answer» B. If the signal sampled is a current

Discussion

No Comment Found

Related MCQs

In the AC equivalent circuit shown in Fig, if Iin is the Input current and Feedback Resistance is very large, the type of Feedback
_______ is used for keeping oscillator frequency away from any drift
During a low frequency response of an amplifier which is invariably of RC-coupled type, there is a range of frequency characteristics over which the amplification is constant and delay is also constant, called
A signal containing frequency component from 445 kHz to 465 kHz is to be amplified. Which of the following will be suitable for the purpose?
A square wave generator is also called:(1) one-shot multivibrator(2) sample and hold circuit(3) free - running multivibrator(4) voltage-to-current convertor
Direction: Given question consists of two statements, one labeled as the 'Assertion (A)' and the other as 'Reason (R)'.You are to examine these two statements carefully and select the answers to these items using the codes given below.Assertion (A): The frequency stability of an oscillator improves as \(\frac {dθ}{d\omega}\) increases, where θ refers to the phase angle of the loop gain.Reason (R): For sustained oscillation to occur in an oscillator circuit, the loop shift should be 0° or 2n π where n is an integer.
In Hartley oscillator generating 2 MHz if C = 0.001 nano farads the value of L = _____.
Barkhausen criterion for oscillations is
Hartley oscillator is
In an amplifier with the negative feedback, bandwidth is _________ and voltage gain is _________.