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Department of Electrical Engineering
BE
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Question 1 : the value of Ic is
Option-1 :Ic = beta Ib + Ie
Option-2 :Ic = beta Ib + alpha Ie
Option-3 :Ic = beta Ib + Iceo
Option-4 :none of the above
Question 2 : ___________ is a type of transistor
Option-1 :pnp
Option-2 :ppn
Option-3 :nnp
Option-4 :none of the above
Question 3 : __________ is a type of transistor
Option-1 :npn
Option-2 :nnp
Option-3 :ppn
Option-4 :none of the above
Question 4 : the intersection of the d.c load line with the given base current curve is the _________
Option-1 :a.c load line
Option-2 :operating point
Option-3 :stabilisation point
Option-4 :all of the above
Question 5 : in order to properly reverse bais the collector base junction of silicon transistor minimum Vce required is ________
Option-1 :1 V
Option-2 :0.3 V
Option-3 :0.5 V
Option-4 :10 V
Question 6 : in order to achive good stabilisation in pontential divider method , current through R1 & R2 should be at least ______ times Ib
Option-1 :2
Option-2 :5
Option-3 :10
Option-4 :none of the above
Question 7 : the best method of bais is __________
Option-1 :self bais
Option-2 :voltage divider bias
Option-3 :biasing with feedback resistor
Option-4 :none of the above
Question 8 : if the operating point shifts ___________ results
Option-1 :thermal runaway
Option-2 :unfaithfull amplification
Option-3 :rectification
Option-4 :none of the above
Question 9 : the value of Y is :
Option-1 :1--alpha
Option-2 :1/ (1-- alpha)
Option-3 :alpha
Option-4 :none of the above
Question 10 : the value of Ic is
Option-1 :Ic=(alpha/ (1-- alpha) ) Ib + (1/(1--alpha ) ) Icbo
Option-2 :Ic=(1-alpha) Tb + Icbo
Option-3 :Ic=(1--al;pha) Ib + (1-- alpha) Icbo
Option-4 :none of the above
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