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Analog Electronics

Analog Electronics
Diode is also called as:

 Rectifier
 Resistance
 Reactance
 Amplifier

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Analog Electronics
When VGS = 0 V, a JFET is

  cut off.
  an open switch.
  saturated.
  an analog device.

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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 =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz
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

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Analog Electronics
The negative part of the output signal in a transistor circuit starts clipping if the Q point of the circuit moves

  toward the saturation point.
None of these
  toward the center of the load line.
  toward the cutoff point.

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Analog Electronics
The β of a transistor is the ratio of the

 collect current to emitter current.
 base current to collector current.
  collect current to base current.
 emitter current to collector current.

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Analog Electronics
What is the most important fact about the collector current?

 It is measured in milliampere.
  It approximately equals the emitter current.
 It equals the base current divided by the current gain.
 It is small.

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