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Analog Electronics

Analog Electronics
If the zener diode in a zener regulator is connected with the wrong polarity, the load voltage will be closest to

  0.7 V.
  18 V.
  14 V.
  10 V.

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Analog Electronics
What is the condition if no external potential energy is applied to the PN junction then diode ?

 Reversed biased
None of these
 Zero Bias
 Forward biased

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

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

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Analog Electronics
An npn BJT has gm=38mA/v, cµ =10¯14 F, cπ =10¯13F and DC current gain β0=90.For this transistor fT & fβ are

fT =1.33 x 1012 Hz & fβ = 1.47 x 1010 Hz
fT =1.47 x 1010 Hz & fβ = 1.64 x 108 Hz
fT =1.47 x 1010 Hz & fβ = 1.33 x 1012 Hz
fT =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz

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Analog Electronics
If temperature increases then conductivity of a semiconductor is ...................

 Constant
 Decreases
None of these
 Increases

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Analog Electronics
Peak inverse voltage (PIV) can be termed as

  Peak repetitive voltage.
 Advalance break down village.
 Zener break down voltage.
 Reverse saturation voltage.

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