Resistivity Of Semiconductors by four probe method

Resistivity Of Semiconductors by four probe method

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Resistivity of semiconductors by four probe method at different Temperatures & Determination of Band gap

The experiment consists of the following : 

  • Four Probe Arrangement 
  • Oven (upto 200ºC) 
  • Sample : Ge Crystal mounted 
  • Thermometer (0-200ºC) 
  • Four Probe Setup 

(a) Constant Current power supply digital Accuracy : +0.25% of the reading +1 digit Load Regulation : 0.03% for no load to full load 

(b)Electronic Millivoltmeter 200 mV Accuracy : + 0.1% of reading = 1 digit Impedence : 1 Mohm 

Display : 3 digit, 7 segment LED (12.5mm) height with auto polarity and decimal indication.


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