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Analog Electronics

Analog Electronics
An n- channel JFET has IDSS=2mA,and Vp=-4v.Its transconductance gm=in mA/V)for an applied gate to source voltage VGS=-2v is

0.25
0.5
0.75
1

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

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Analog Electronics
The arrow direction in diode symbol indicates

  direction of hole flow.
  opposite to the direction of hole flow.
  direction of electron flow.
  none of these.

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Analog Electronics
When P-type substance is connected with negative and n-type is connected with positive terminal of the battery then P-n junction diode is in ....................

 No biased
None of these
 Reverse biased
 Forward biased

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Analog Electronics
IGFET is a

  square - law device.
  half - power device.
  3 / 2 power - low device .
  linear device.

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Analog Electronics
How will be the extrinsic semiconductor act at room temperature ?

 Medium Conductor
 Poor conductor
None of these
 Conductor

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