WBUT Question Paper For B.TECH 2nd year Student ANALOG ELECTRONIC CIRCUITS (CS/B.TECH (ECE)(N)/SEM-3/EC-304/2012-13) Question paper

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CS/B.TECH (ECE)(N)/SEM-3/EC-304/2012-13

 

2012

 

ANALOG ELECTRONIC CIRCUITS

 

Time Allotted : 3 Hours                                                                         Full Marks : 70

 

The figures in the margin indicate full marks.

Candidates are required to give their answers in their own words

as far as practicable.

 

GROUP – A

 

( Multiple Choice Type Questions )

 

1. Choose the correct alternatives for the following : 10×1 = 10

 

                                 i) An instrumentation amplifier has a high

 

                                    a) supply voltage      b) power gain

 

                                    c) CMRR                  d) output impedance.

 

                                ii) A transistor is said to be in quiescent state when

 

                                    a) no signal is applied to the input

 

                                    b) no currents are following

 

                                    c) it is unbiased

 

                                    d) emitter junction and collector junction biased are

                                         equal.

 

                              iii) If three cascaded stages of amplifier have gains 10, 20,

                                   30 the overall gain will be

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