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Analog Electronics

Analog Electronics
Germanium has

 molecular bond.
 covalent bond.
 ionic bond.
 metallic bond.

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Analog Electronics
The following relationship between α and β are correct except

  α = β / (1 - β).
  β = α / (1 - α).
  α = β / (1 + β).
  1 - α = 1 / (1 + β).

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Analog Electronics
A D - MOSFET can operate in the

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

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Analog Electronics
Darlington connection is achieved in 2 transistors by connecting

 both collector.
 both emitter.
 grounding both collector.
 both base.

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

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

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