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Analog Electronics

Analog Electronics
What is the charge of mobile charge carriers of holes ?

 No charged
 Positively charged
None of these
 Negatively charged

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Analog Electronics
LC oscillators are used for produce a waveform with frequency ranging from

 1 KHz to 1 MHz
 100 KHz to 500 MHz
 1MHz to 100 GHz
 1MHz to 500 MHz

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Analog Electronics
In a properly biased NPN transistor most of the electrons from the emitter

  are stopped by the junction barrier.
  pass through the base to the collector.
  recombine with holes in the base .
  recombine in the emitter its self.

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Analog Electronics
Which of following is the fastest switching device ?

  JFET.
  MOSFET.
  BJT.
  Triode.

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Analog Electronics
A zener diode voltage regulator has load requirement of 12 V and 2 Amp. The zener diode's minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is maximum efficiency of circuit?

 34.3 %.
 52.8 %.
 66.3 %.
 45.5 %.

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Analog Electronics
Voltage controlled oscillators are used commonly in

 Frequency Modulators
 Pulse Modulators Frequency Modulators Phase Clocked loops
 Phase Clocked loops
 All the above

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MORE MCQ ON Analog Electronics

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