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Analog Electronics

Analog Electronics
Which of the following is Pentavalent impurity?

 antimony
 indium
 boron
 gallium

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Analog Electronics
The extremely high input impedance of a MOSFET is primarily due to the

  negative gate-source voltage.
  absence of its channel.
  depletion of electric current carriers.
  extremely small leakage electric current of its gate capacitor.

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Analog Electronics
If the base resistor is very small, the transistor will operate in the

 cutoff region.
 active region.
All of these
  saturation region.

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Analog Electronics
In n type semiconductor elements of which group of periodic table is added as dopant

 group 5.
 group 2.
 group 4.
 group 3.

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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
0.75
0.5
1

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Analog Electronics
When Semiconductor materials is heated its resistance

None of these
 decreases
 remains constant
 increases

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