WBUT 2012 SOLID STATE DEVICE(CS/B.Tech (ECE-OLD)/SEM-3/EC-301/2012-13) QUESTION PAPER

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CS/B.Tech (ECE-OLD)/SEM-3/EC-301/2012-13

2012

SOLID STATE DEVICE

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 any ten of the following :     10X1 = 10

i) Which type of semiconductor is mostly used for forming transistor

a) Si                                        b) Ge

c) Inp                                       d) GaAs.

ii) Which type of capacitance is prominent in reversed bias

 a) diffusion                           b) depletion

c) none of these                   d) both of these.

iii) Which one of the following provides fastest switching

a) BJT                                 b) MOSFET

 c) JFET                               d) Diode.

 

 

 

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