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Analog Electronics

Analog Electronics
When were the first solid state devices manufactured ?

 1970
 1960
 1940
 1950

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Analog Electronics
MOSFET requires

  Only small input current.
 None of these.
 A large input current and high voltage.
 A large input current.

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Analog Electronics
Which of the following is not a sinusoidal oscillator?

 Relaxation oscillator
 RC phase shift oscillator
 Crystal oscillator
 LC oscillator

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Analog Electronics
Electron mobility is defined as

 Diffusion velocity per unit field
 the movement of electrons
None of these
 Drift velocity per unit field

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Analog Electronics
The AC base voltage of an emitter follower is across the

 load resistor.
 emitter diode.
 DC emitter resistor.
  emitter diode and external AC emitter resistance.

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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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