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Analog Electronics

Analog Electronics
Donors to a semiconductor material is

 Divalant
 Pentavalant
 Tetravalant
 Trivalant

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Analog Electronics
The β of a transistor may be determined directly from the curve plotted between

  VCE and IC for constant IE.
  VCE and IE for constant IB.
  VBE and IE for constant VCE.
  VCE and IC for constant IB.

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Analog Electronics
An npn BJT has gm=38mA/v, cµ =10¯14 F, cπ =10¯13F and DC current gain β0=90.For this transistor fT & fβ are

fT =1.47 x 1010 Hz & fβ = 1.64 x 108 Hz
fT =1.47 x 1010 Hz & fβ = 1.33 x 1012 Hz
fT =1.33 x 1012 Hz & fβ = 1.47 x 1010 Hz
fT =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz

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Analog Electronics
Binary Logic is mainly based on arithmetic operation and

 addition operations
 logical operations
 both A and B
 subtraction operations

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Analog Electronics
Which of the following is trivalent impurity ?

 Boron
 Silicon
 Antimony
None of these

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Analog Electronics
For emitter bias, the voltage at the emitter is 0.7 V less than the

 emitter voltage.
  base voltage.
 collector voltage.
 ground voltage.

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MORE MCQ ON Analog Electronics

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