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Analog Electronics

Analog Electronics
If the collector resistor opens in a base-biased circuit, the load line will become

 vertical.
 flat.
  horizontal.
 useless.

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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 / √ 3 V.
 400√ (2/3) V.
 400√ 2 V.

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Analog Electronics
A quartz crystal oscillator consists of

 both series and parallel frequencies.
 only series resonant frequency.
 neither series nor parallel frequency.
 only parallel resonant frequency.

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Analog Electronics
Most small - signal E - MOSFETs are found in

  heavy - current applications.
  disk drives.
  discrete circuits.
  integrated circuit.

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Analog Electronics
The base of an npn transistor is thin and

  lightly doped.
 heavily doped.
 metallic.
 doped by a pentavalent material.

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Analog Electronics
Three identical amplifiers with each one having a voltage gain of 50,input resistance of 1KΩ & output resistance of 250, are cascaded. The open circuit voltage gain of combined amplifier is

102dB
49dB
98dB
51dB

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