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Analog Electronics

Analog Electronics
The resistance of pn junction when it is forward biased in the order of

 Mega Ohm
 Ohm
None of these
 Kilo Ohm

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Analog Electronics
A quartz crystal oscillator consists of

 neither series nor parallel frequency.
 both series and parallel frequencies.
 only series resonant frequency.
 only parallel resonant frequency.

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Analog Electronics
When a reverse bias is applied to a diode, it will

  increases the majority carrier an electric current greatly.
  lower the potential barrier.
  none of these.
  raise the potential barrier.

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Analog Electronics
Germanium has

 metallic bond.
 covalent bond.
 molecular bond.
 ionic bond.

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Analog Electronics
Three identical amplifiers with each one having a voltage gain of 50,input resistance of 1KΩ & output resistance of 250, are cascaded. The open circuit voltage gain of combined amplifier is

51dB
102dB
98dB
49dB

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Analog Electronics
When the two input terminals of a differential amplifier are grounded

  the collector currents are equal.
  an output error voltage usually exists.
  the base currents are equal.
  the ac output voltage is zero.

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