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1
GATE ECE 1999
MCQ (Single Correct Answer)
+2
-0.6
An amplifier is assumed to have a single pole high frequency transfer function. The rise time of its output response to a step function input is 35 nsec. The upper 3 dB frequency (in MHz) for the amplifier to a sinusoidal input is approximately at
A
4.55
B
10
C
20
D
28.6
2
GATE ECE 1996
MCQ (Single Correct Answer)
+2
-0.6
In the circuit shown in Fig. is a finite gain amplifier with a gain of K, a very large input impedance, and a very low output impedance. The input impedance of the feedback amplifier with the feedback impedance Z conducted as shown will be GATE ECE 1996 Analog Circuits - Frequency Response Question 7 English
A
$$Z\left[ {1 - {1 \over K}} \right]$$
B
$$Z\left( {1 - K} \right)$$
C
$$\left[ {{Z \over {K - 1}}} \right]$$
D
$$\left[ {{Z \over {1 - K}}} \right]$$
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