JEE PHYSICS MCQ: CURRENT ELECTRICITY

1 Medium

1 of 1

Understanding +4 | -1

If the temperature of cold junction of thermocouple is lowered, then the neutral temperature

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Correct option: D

Remains the same

Option A (1:2:3) is correct because the areal expansion coefficient is twice the linear expansion coefficient, and the volume expansion coefficient is three times the linear expansion coefficient.

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