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6. The first digital display on the TD400 shows:1- 2... 3. 7.- In a J-type thermocouple experiment, if the deviation=1299 µV and the measured voltage = 57760 µV, then the reference temperature ........ 3. In a J-type thermocouple experiment at reference temperature -30, deviation - 723 µV so them voltage read out for the device.. . In a PRT calibration experiment, if the measured voltage (mV) - 100 and the constant curren used is 0.8 mA, and the deviation = 1.69 then the standard resistance 0. Which of the thermometers has a direct reading:.. 1. Working on the principle that different metals expand at different rates when heated. Using two strips of different metals in a thermometer:.. 2. In the PRT experiment at 20 °C measured voltage (mV)=572, the constant current used is 2.5 mA then error=.. 5. The voltages using the digital meter will be higher than those obtained with the movable ce ammeter (mcm) (true,false) . reasons for choosing platinum for the manufacture of PRT:1. 3.......... 2........ Advantages of using gas pressure thermometer 1- Strain gauge is: