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Analog Electronics

Analog Electronics
Semiconductor Diode is used as

 an oscillator
 a rectifier
 a modulator
 an amplifier

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Analog Electronics
If the collector resistor is open, the collector voltage is

 unknown.
  low.
 unchanged.
 high.

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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

 0.266.
 0.220.
 0.242.
  0.200.

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Analog Electronics
A dc power supply has no-load voltage of 30v,and a full-load voltage of 25v at full-load current of 1A.Its output resistance & load regulation ,respectively are

5 Ω & 16.7 %
5 Ω & 20 %
25 Ω & 16.7 %
25 Ω & 20 %

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Analog Electronics
A 10 V DC regulator power supply has a regulation of 0.005 %. The output voltage will vary within an envelope of __________________ milivolt.

  5.
  2.5.
  0.05.
  0.5.

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Analog Electronics
A constant current signal across a parallel RLC circuits gives an o/p of 1.4v at the signal frequency of 3.89KHZ and 4.1KHZ. At the frequency of 4KHZ,the o/p voltage will be

1.4v
1v
2.8v
2v

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