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Analog Electronics

Analog Electronics
An Op-Amp comparator circuit employs

 -ve feedback.
 +ve feedback.
 no feedback.
 both B and C.

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Analog Electronics
The emitter of the transistor is doped

  moderately.
  lightly.
  heavily.
  none of these

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

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Analog Electronics
The current gain of a BJT is

gm rπ
gm /rπ
gm r0
gm / r0

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Analog Electronics
Base of a number system is also known as

 radix
 shift
 count
 value

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

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

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