1
GATE ECE 1995
MCQ (Single Correct Answer)
+1
-0.3
A change in the value of the Emitter resistance (Re in a difference Amplifier.
A
Affects the difference mode gain Ad
B
Affects the common mode gain Ac.
C
Affects both Ad and Ac
D
Does not affect either Ad (or) Ac.
2
GATE ECE 1995
Fill in the Blanks
+1
-0
An Amplifier has an open-loop gain of 100 and its lower and upper-cut-off frequency of 100 Hz and 100 kHz respectively, a feedback network with a feedback factor of 0.99 is connected to the amplifier. the lower-and upper-cut-off frequency's are at ............and ............
3
GATE ECE 1995
Fill in the Blanks
+1
-0
An RC-Coupled Amplifier is assumed to have a single-pole low frequency transfer function. The maximum lower-cutoff frequency allowed for the Amplifier to pass 50 Hz square wave with no more than 10% tilt is ______.
4
GATE ECE 1995
MCQ (Single Correct Answer)
+1
-0.3
The signal to quantization noise ratio in an n-bit PCM system
A
depends upon the sampling frequency employed.
B
is independent of the value of 'n'.
C
increasing with increasing value of 'n'.
D
decreases with the increasing value of n'.