The New Fashion Pyramid: Part 1/2
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°C
- B. 248°C
- C. 250°C
- D. 350°C
To properly understand this question, we need a sketch…
Now for the right answer to the above question:
- Option A is incorrect.
- Option B is incorrect.
- C is correct.
- D is not the correct answer.
You may please note these/this:
- Problems like this are usually resolved by sketching the scale and tracing the upper and lower fixed points.
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/culled from 2019 JAMB-UTME physics question 26/