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

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

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Analog Electronics
In a transistor amplifier, the reverse saturation electric current ICO

  double for every 10° rise in temperature.
  double for every 5° rise in temperature.
  increase linearly with the temperature.
  double for every 1° rise in temperature.

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