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Analog Electronics

Analog Electronics
Given (135)x + (144)x = (323)x what is the value of base x?

 6
 4
 3
 5

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Analog Electronics
A 3 - phase diode bridge rectifier is fed from a 400 V rms, 50 Hz, 3 phase AC source. If the load is purely resistive, then peak instantaneous output voltage is equal to

 400 V.
 400√ 2 V.
 400√ (2/3) V.
 400 / √ 3 V.

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Analog Electronics
The load voltage is approximately constant when a zener diode is

  operating in breakdown region.
  forward biased.
  reverse biased.
  unbiased.

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Analog Electronics
In an E only MOSFET, drain electric current starts only when VGS (th) is

  greater than VGS (th).
  negative.
  positive.
  zero.

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Analog Electronics
A LED produces light when

  unbiased.
  reverse biased.
None of these
  forward biased.

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Analog Electronics
In a differential amplifier, the CMRR is limited mostly by the

  CMRR of the opamp.
  supply voltages .
  gain - bandwidth product.
  tolerance of the resistors.

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