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Analog Electronics

Analog Electronics
If the current gain is 100 and the collector current is 10 mA, the base current is

 1 A.
  100 µA.
 10 A.
 10 µA.

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Analog Electronics
The base of an npn transistor is thin and

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

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Analog Electronics
To prevent a DC return between source and load, it is necessary to use

Inductor between source and load
Capacitor between source and load
Resistor between source and load
Either A or B

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Analog Electronics
A diode (p-n junction) when reverse biased act as

 Zener diode
 Off Switch
 On Switch
 Capacitor

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Analog Electronics
A silicon pn junction in forward condition has a voltage drop closer to

 0.1 V.
 1.7 V.
 2.1 V.
 0.7 V.

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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 =1.47 x 1010 Hz & fβ = 1.33 x 1012 Hz
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

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