Problems on AC and DC Analysis MCQ

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• In low frequency region, the gain_________
  ক

  increases

  খ

  decreases

  গ

  remains same

  ঘ

  depends on value of capacitors
• In mid frequency region, the large capacitors are short and small capacitors are open circuited. What happens to the RC coupled circuit?
  ক

  the circuit is now frequency blind

  খ

  it is DC isolated

  গ

  the circuit turns reactive

  ঘ

  the circuit is AC dependent
• In which of the regions, the small capacitors are open circuited?
  ক

  high frequency

  খ

  medium frequency

  গ

  low frequency

  ঘ

  the region does not affect he capacitors
• The PNP transistor when used for switching the power, then it is called_________
  ক

  sourcing current

  খ

  sinking current

  গ

  forward sourcing

  ঘ

  reverse sinking
• When the β value is large for a given transistor, the IC and hoe values are given by_________
  ক

  (VCC-VBE)/RB, VCC-RCIC

  খ

  (VCC+VBE)/RB, VCC-RC(IC+IB)

  গ

  (VCC+VBE)/RB, VCC+RC(IC+IB)

  ঘ

  (VCC+VBE)/RB,VCC+RC(IC-IB)
• In the circuit, transistor has β =60, VBE=0.7V. Find the collector to emitter voltage drop hoe.
  ক

  5V

  খ

  3V

  গ

  8V

  ঘ

  6V