Analog Electronics
When the JFET is no longer able to control the current, this point is called the

  breakdown region.
  depletion region.
  saturated point.
  pinch-off region.

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Analog Electronics
In an OP-amp differentiator

The amplitude of output is proportional to input
Output occurs when input is finite and constant
The amplitude of output is proportional to rate of change of input
Polarity of input and output is the same

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