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
- 100\(^o\)C
- 248\(^o\)C
-
250\(^o\)C
- 350\(^o\)C
The correct answer is: C
Explanation
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 |
There is an explanation video available .