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Characteristic curves of semiconductors with Cobra4

Characteristic curves of semiconductors with Cobra4

Item no.: P2410960

Measurement Type: with a computer, Mobile (Datalogging)

Difficulty Expenditure of Time print
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Principle

The current-voltage characteristic of a semiconducting diode is measured.
The collector current in dependency on the emitter-collector voltage is measured for different values of base current strength through a NPN transistor.

Benefits

  • Fast and easy experimenting
  • Get to know the behaviour of several types of semiconductors
  • Simplified implementation: all pre-settings already prepared
  • Data logging reveals instantaneous results during measurement

Tasks

  1. To investigate the dependence of the current strength flowing through a semi-conducting diode.
  2. To determine the variations of the collector current with the collector voltage for varios values of the base current intensity.

What you can learn about

  • Semiconductor
  • p-n junction
  • Energy-band diagram
  • Acceptors
  • Donors
  • Valence band
  • Conduction band
  • Transistor
  • Operating point

Computer required. Software included.

 

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