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The rate of increase of thermo-e.m.f. with temperature at the neutral temperature of a thermocouple
Options
(a) is positive
(b) is zero
(c) depends upon the choice of the two materials of the thermocouple
(d) is negative
Correct Answer:
is zero
Explanation:
We have, e = at + bt²
de/ dt = a + 2bt
At neutral temperature,
t = – a / 2b
de/ dt = 0
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An elevator car whose floor to ceiling distance is equal to 2.7m starts
- Electrons in a certain energy level n=n₁, can emit 3 spectral lines. When they
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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