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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

0.75
1
0.25
0.5

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Analog Electronics
A semiconductor material is formed by

 Covalent bonds
 Electrovalent bonds
None of these
 Metallic bonds

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Analog Electronics
The Q-point in a voltage amplifier is selected in the middle of the active region because

  the circuit needs a small.
  it gives distortions less output.
  the biasing circuit then need less number of resistors.
  it gives better stability.

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Analog Electronics
A dc power supply has no-load voltage of 30v,and a full-load voltage of 25v at full-load current of 1A.Its output resistance & load regulation ,respectively are

25 Ω & 20 %
25 Ω & 16.7 %
5 Ω & 20 %
5 Ω & 16.7 %

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Analog Electronics
In a transistor leakage current mainly depends on

Size of emitter
Temperature
Rating of transistor
Doping of base

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Analog Electronics
A electric current ratio of IC / IE is usually less than one and is called

  α.
  θ.
  ω.
  β.

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