Analog Electronics
Electrons in p-type material of a semi-conductor are called as

 either minority carriers or majority carriers
 majority carriers
 minority carriers
 valance carriers

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Analog Electronics
The ICBO is the electric current that flows when some DC voltage is applied

  in the reverse direction to the emitter junction with collector open.
  in the reverse direction to the collector junction with emitter open.
  in the forward direction to the emitter junction with collector open.
  in the forward direction to the collector junction with emitter open.

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Analog Electronics
Voltage Series (feedback also called series-shunt feedback) results in

Decreases in both input & output impedances
Increase in input impedance & decreases in output impedance
Increase in both input & output impedances
Decrease in input impedance & increase in output impedance

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