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Analog Electronics

Analog Electronics
When were the first solid state devices manufactured ?

 1970
 1950
 1960
 1940

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Analog Electronics
When VGS = 0 V, a JFET is

  saturated.
  cut off.
  an open switch.
  an analog device.

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Analog Electronics
The following relationship between α and β are correct except

  α = β / (1 + β).
  1 - α = 1 / (1 + β).
  α = β / (1 - β).
  β = α / (1 - α).

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Analog Electronics
If a transistor operates at the middle of the load line, a decrease in the current gain will move the Q point

  down.
 up.
 nowhere.
 off the load line.

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Analog Electronics
The collector - emitter voltage is usually

  less than the collector supply voltage.
 more than the collector supply voltage.
 equal to the collector supply voltage.
 none of these.

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

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