Wednesday, October 22, 2014

GATE 1987 ECE Analog Circuits (Analog Electronics) - Video Solutions

1. In the figure, if the CMRR of the operational amplifier is 60 dB, then the magnitude of the output voltage is

Answer: 100 mV
Solution :

2. The configuration of cascode amplifier is
a. CE – CE
b. CE – CB
c. CC – CB
d. CC – CC

Answer: B
Solution :

3. In case of class A amplifiers, the ratio of efficiency of transformer coupled amplifier to efficiency of a transformer less amplifier is
a. 2.0
b. 1.36
c. 1.0
d. 0.5

Answer: A
Solution :

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