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Q#1
MOSFET
GATE EC 2024
MCQ
+1 mark
-0.33 marks
For the closed loop amplifier circuit shown below, the magnitude of open loop low frequency small signal voltage gain is 40. All the transistors are biased in saturation. The current source 
is ideal. Neglect body effect, channel length modulation and intrinsic device capacitances. The closed loop low frequency small signal voltage gain 
(rounded off to three decimal places) is________.
0.976
1.000
1.025
0.488
Explanation:
Given open loop gain 
For the given differential amplifier with current mirror as active load.
Closed Loop gain 
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