Sold By Abron Export Status In Stock Id-7493
Department All Practical Physics
Engineering-BE Btech 1st Year- Apparatus Reqiuired-Four ponit probe arrangement, a measuring unit (consisting of three subunits 1. multrirange digital voltmeter, 2. Constant current generator and 3. oven power supply) a thermometer,an oven ther given sample etc
Band gap of Semi-conductor Energy Gap in Ge Crystal 4 Probe Resistivity Method Electronic Trainer setup kit with power supply
Built in constant current source and Milli-voltmeter Easy change of sample With mini Heating Oven complete in all respect.
The Four Probe Method is one of the standard and most widely used methods for the measurement of resistivity of semi-conductors. effective resistance of the voltage measuring device
Probe Arrangement Four individually spring loaded
Sample : Germanium crystal in the form of a chip.
Oven : It is a small oven for the variation of temperature.
Four Probe Set-up : Set-up consists units
(i) Digital Voltmeter 0-200mV) & 0-2Vx10x
Display 3-1/2 digit, 7 segment LED (12.5 mm height)
auto polarity and decimal Overload Indicator
(ii) Constant Current Generator Specifications:
Open Circuit Voltage 18 V
Current Range 0 - 20 mA
Resolution 10 uA
Accuracy + 0.25% of the reading + 1 digit
Load Regulation 0.03% for 0 to full load
Line Regulation 0.05% for 10% changes
(iii) Oven Power Supply
Glowing LED indicates when the oven power supply is 'ON'.
* Complete with Manual and Connection Wire.
Cat No Item with Power Supply meters
AE-1204R Band Gap of GE Crystal semi-conductor diode digital
4 four probe method mini oven temp controlled
power supply electronic trainer set up kit abron
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