A thermocouple thermometer is connected to a mi... - JAMB Physics 2019 Question
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
A
100\(^o\)C
B
248\(^o\)C
C
250\(^o\)C
D
350\(^o\)C
correct option: c
t\(_\theta\) - t\(_o\) = 10,
t\(_{100}\) - t\(_o\) = 4
| θ = | t\(_\theta\) - t\(_o\)
t\(_{100}\) - t\(_o\) |
× | 100 |
| 10
4 |
× | 100 | = | 250°C |
θ = 250°C
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