| ⇦ | 
| ⇨ |
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
Related Questions: - If doubly ionised lithium atom is hydrogen like with atomic number 3, the wavelength
- When temperature of an ideal gas is increased from 27⁰C to 227⁰C,
- Two parallel beams of positron moving in the same direction will
- A glass slab consists of thin uniform layers of progressively decreasing refractive
- A car moves from X to Y with a uniform speed v(u) and returns to Y with a uniform speed
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If doubly ionised lithium atom is hydrogen like with atomic number 3, the wavelength
- When temperature of an ideal gas is increased from 27⁰C to 227⁰C,
- Two parallel beams of positron moving in the same direction will
- A glass slab consists of thin uniform layers of progressively decreasing refractive
- A car moves from X to Y with a uniform speed v(u) and returns to Y with a uniform speed
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply