Educational trainer


The experiment consists of the following :


(i) Four Probe Arrangement


(ii) Oven (upto 200ºC)


(iii) Sample : Ge Crystal mounted


(iv) Thermometer (0-200ºC)


(v)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 : 3½ digit, 7 segment LED (12.5mm) height with auto polarity and decimal indication.


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