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Analog Electronics

Analog Electronics
Barrier potential at the temperature (25°C) is 0.7 V, its value at 125°C is

  0.9 V.
  0.7 V.
  0.3 V.
  0.5 V.

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Analog Electronics
In a nonlinear op-amp circuit, the

  opamp never saturates.
  opamp may saturate.
  feedback loop is never opened.
  output shape is the same as the input shape.

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Analog Electronics
The room temperature resistivity of pure silicon is

 300
 3000
 6
 50

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Analog Electronics
The majority carrier in P-type extrinsic semiconductor material is

 Electrons
 Holes
 Both Holes and Electrons
None of these

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Analog Electronics
In a normally biased npn transistor, the electrons in the emitter have enough energy to overcome the barrier potential of the

 base - collector junction.
 recombination path.
 collector - base junction.
  base - emitter junction.

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Analog Electronics
A silicon pn junction in forward condition has a voltage drop closer to

 0.7 V.
 0.1 V.
 1.7 V.
 2.1 V.

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