A thermocouple thermometer is connected to a millivoltmet...
A thermocouple thermometer is connected to a millivoltmeter which can read up to 10mV. When one junction is in ice at 0°C and the other is steam at 100°C, the millivoltmeter reads 4mV. What is the maximum temperature which this arrangement can measure
100oC
248oC
250oC
350oC
Correct answer is C
tθ - to = 10,
t100 - to = 4
θ | = | tθ - to
t100 - to |
× | 100 |
10
4 |
× | 100 | = | 250°C |