Analog Electronics
LC oscillators are used for produce a waveform with frequency ranging from

 1MHz to 500 MHz
 1MHz to 100 GHz
 100 KHz to 500 MHz
 1 KHz to 1 MHz

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

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Analog Electronics
The ICBO is the electric current that flows when some DC voltage is applied

  in the reverse direction to the emitter junction with collector open.
  in the forward direction to the emitter junction with collector open.
  in the forward direction to the collector junction with emitter open.
  in the reverse direction to the collector junction with emitter open.

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