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Analog Electronics

Analog Electronics
A transistor has how many PN junctions?

 3.
  2.
 4.
 1.

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Analog Electronics
When there is no base current in a transistor switch, the output voltage from the transistor is

 low.
 unchanged.
 unknown.
  high.

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Analog Electronics
In CE configuration, the input V-I characteristics are drawn by taking

  VCE versus IC for constant value of IE.
  VBE versus IB for constant value of VCE.
  VBE versus IB for constant value of IC.
  VBE versus IE for constant value of VCE.

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Analog Electronics
If the base resistor has zero resistance, the transistor will probably be

 in cutoff.
 saturated.
None of these
  destroyed.

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

 1 A.
  100 µA.
 10 µA.
 10 A.

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Analog Electronics
When the source voltage increases in a zener regulator, which of these electric current remain approximately constant ?

  None of these.
  Load current.
  Zener current.
  Series current.

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