1
GATE ECE 1995
Fill in the Blanks
+1
-0
In the given circuit if the voltage inputs V- and V+ are to be Amplified by the same Amplification factor, the value of 'R' should be
2
GATE ECE 1995
+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
D
Does not affect either Ad (or) Ac.
3
GATE ECE 1995
Fill in the Blanks
+1
-0
An op-Amp is used as a zero-crossing detector. If maximum output available from the Op-Amp is $$\pm 12\,\,{V_{p - p}}$$ and the slew rate of the Op-Amp is 12 $$V/\mu$$ sec then the maximum frequency of the input signal that can be applied without causing a reduction in the P-P output is _____
4
GATE ECE 1995
+1
-0.3
To obtain very high input and output impedances in a feedback Amplifier, the mostly used is
A
Voltage - series
B
Current - series
C
Voltage - shunt
D
Current - shunt
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