Question:
First order derivation of thermo emf produced in thermo-couple with respect to temperature gives ........
First order derivation of thermo emf produced in thermo-couple with respect to temperature gives ........
Updated On: Apr 29, 2024
- inversion temperature
- thomson coefficient
- neutral temperature
- thermoelectric power
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
First order derivation of thermo emf with respect to temperature $= \frac {dE}{dT}$
But we know that the thermoelectric power $\hspace15mm P= \frac {dE}{dT}$
So, the first order derivation of thermo emf produced in thermo-couple with respect to temperature gives thermoelectric power.
But we know that the thermoelectric power $\hspace15mm P= \frac {dE}{dT}$
So, the first order derivation of thermo emf produced in thermo-couple with respect to temperature gives thermoelectric power.
Was this answer helpful?
0
0
Top Questions on Electromagnetic induction
- A rectangular metallic loop is moving out of a uniform magnetic field region to a field-free region with a constant speed. When the loop is partially inside the magnetic field, the plot of the magnitude of the induced emf \( (\varepsilon) \) with time \( (t) \) is given by:
- JEE Main - 2025
- Physics
- Electromagnetic induction
- A ceiling fan having 3 blades of length 80 cm each is rotating with an angular velocity of 1200 rpm. The magnetic field of earth in that region is 0.5 G and the angle of dip is \( 30^\circ \). The emf induced across the blades is \( N \pi \times 10^{-5} \, \text{V} \). The value of \( N \) is \( \_\_\_\_\_ \).
- JEE Main - 2024
- Physics
- Electromagnetic induction
- A wire of length \( 1 \, \text{m} \) moving with velocity \( 8 \, \text{m/s} \) at right angles to a magnetic field of \( 2 \, \text{T} \). The magnitude of induced emf between the ends of the wire will be:
- MHT CET - 2024
- Physics
- Electromagnetic induction
- The magnetic flux through a coil perpendicular to its plane is varying according to the relation \( \phi = 5t^3 + 4t^2 + 2t - 5 \). If the resistance of the coil is \( 5 \, \Omega \), then the induced current through the coil at \( t = 2 \, \text{sec} \) will be:
- MHT CET - 2024
- Physics
- Electromagnetic induction
- Which of the following correctly represents the AND logic gate?
- MHT CET - 2024
- Physics
- Electromagnetic induction
View More Questions
Questions Asked in GUJCET exam
If the value of \( \cos \alpha \) is \( \frac{\sqrt{3}}{2} \), then \( A + A = I \), where \[ A = \begin{bmatrix} \sin\alpha & -\cos\alpha \\ \cos\alpha & \sin\alpha \end{bmatrix}. \]
- GUJCET - 2024
- Matrix Algebra
- If \( A = \begin{pmatrix} 0 & 0 & -1 \\ 0 & -1 & 0 \\ -1 & 0 & 0 \end{pmatrix} \), find \( I + A^2 \), where \( I \) is the identity matrix.
- GUJCET - 2024
- Matrix Algebra
- If \[ \left| \begin{pmatrix} 2017 & 2018 \\ 2019 & 2020 \end{pmatrix} \right| + \left| \begin{pmatrix} 2021 & 2022 \\ 2023 & 2024 \end{pmatrix} \right| = 2k \] find \( k^3 \).
- GUJCET - 2024
- Determinants
- Evaluate the integral \( \int \frac{1}{\sqrt{4x - x^2}} \, dx \).
- GUJCET - 2024
- Integral Calculus
- Evaluate the integral \( \int e^x \left( \frac{1 + \sin x}{1 - \sin x} \right) \, dx \).
- GUJCET - 2024
- Integral Calculus
View More Questions
Concepts Used:
Electromagnetic Induction
Electromagnetic Induction is a current produced by the voltage production due to a changing magnetic field. This happens in one of the two conditions:-
- When we place the conductor in a changing magnetic field.
- When the conductor constantly moves in a stationary field.
Formula:
The electromagnetic induction is mathematically represented as:-
e=N × d∅.dt
Where
- e = induced voltage
- N = number of turns in the coil
- Φ = Magnetic flux (This is the amount of magnetic field present on the surface)
- t = time
Applications of Electromagnetic Induction
- Electromagnetic induction in AC generator
- Electrical Transformers
- Magnetic Flow Meter