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Analog Electronics

Analog Electronics
Junction field effect transistors (JFET) contain how many diodes?

  1.
  3.
  4.
  2.

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Analog Electronics
Single phase, 230 V, 1 KW heater is connected acrose single phase 230 V, 50 Hz supply through a diode. The power delivered to the heater element

  500 W.
 100 W.
 None of above.
 1000 W.

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Analog Electronics
When a reverse bias is applied to gate of JFET the depletion region width

  is uniform in the channel.
  is wider near the source and tapers near the drain.
None of these
  is wider near the drain and tapers near source.

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Analog Electronics
For emitter bias, the voltage at the emitter is 0.7 V less than the

 ground voltage.
  base voltage.
 collector voltage.
 emitter voltage.

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Analog Electronics
For a diode, reverse recovery time is defined as the time between the instant diode current becomes zero and the instant reverse recovery current decays to

 15% of reverse peak current.
  25% of reverse peak current.
 0.
 10% of reverse peak current.

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Analog Electronics
Which types of device is the diode ?

 Semiconductor
 Conductor
None of these
 Insulator

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