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Analog Electronics

Analog Electronics
Assume that diode D1, D2 in figure are ideal diodes. The value of current is mcq-diagram

 0.5 mA.
 0 mA.
 2 mA.
 1 mA.

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Analog Electronics
If the emitter resistor is open, the collector voltage is

 unknown.
 unchanged.
 low.
  high.

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Analog Electronics
In a JFET, if the gate voltage Vgs is made more negative, then

  depletion region decreases.
  channel conductivity decreases.
  channel conductivity increases.
  channel electric current increases .

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Analog Electronics
If the base supply voltage is disconnected, the collector-emitter voltage will equal

 0 V.
  collector supply voltage.
 6 V.
 10.5 V.

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Analog Electronics
The major advantage of a photo transistor as compared to a photo diode is its

  increased sensitivity.
 AC operation.
 response to higher frequencies.
 durability.

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Analog Electronics
The expression for frequency of oscillations of a RC phase shift oscillator is

 f = 1 / (2π√R(C1 + C2))
None of these
 f = 1 / (2π RC√6)
 f = 1 / (2π√RC)

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