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Analog Electronics

Analog Electronics
If the base resistor is open, what is the collect current?

 10 mA.
 1 mA.
 2 mA.
  0 mA.

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Analog Electronics
A D - MOSFET can operate in the

  low - impedance.
  enhancement - mode only.
  depletion - mode or enhancement - mode.
  depletion - mode only .

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Analog Electronics
Negative feedback in an amplifier

Increases noise
Reduces bandwidth
Reduces gain
Increase frequency &phase distortion

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Analog Electronics
The input stage of an op amp is usually a

  differential amp.
  class B push-pull amplifier.
  swamped amplifier.
  CE amplifier.

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Analog Electronics
The per unit impedance of a synchorous machine is 0.242. If base voltage is increased by 1.1 times, then per unit value will be

  0.200.
 0.242.
 0.266.
 0.220.

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Analog Electronics
The 741 C has a unity - gain frequency of

  15 MHz.
  10 Hz.
  1 MHz.
  20 Hz.

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