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Analog Electronics

Analog Electronics
Given (135)x + (144)x = (323)x what is the value of base x?

 3
 5
 6
 4

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Analog Electronics
Barrier potential at the temperature (25°C) is 0.7 V, its value at 125°C is

  0.7 V.
  0.5 V.
  0.3 V.
  0.9 V.

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Analog Electronics
Most of the electrons in the base of an NPN transistor do not recombine because they

  have a long lifetime.
 must flow through the base.
 flow out of the base.
 have a negative charge.

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Analog Electronics
The most commonly used amplifier in sample & hold circuits is

An inverting amplifiers with a gain of 100
A unity gain non-inverting amplifier
A unity gain inverting amplifier
An inverting amplifier with a gain of 10

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Analog Electronics
The current gain of a pnp transistor is

 near zero.
 the ratio of collector current to emitter current.
 the negative of the npn current gain.
 the collector current divided by the emitter current.

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Analog Electronics
The gate controls

  the width of the channel.
  all of them.
  the drain current.
  the gate voltage.

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