AP EAMCET · PHYSICS · Thermodynamics
Temperature of cold junction in a thermocouple is \(10^{\circ} \mathrm{C}\) and neutral temperature is \(270^{\circ} \mathrm{C}\), then the temperature of inversion is
- A \(540^{\circ} \mathrm{C}\)
- B \(530^{\circ} \mathrm{C}\)
- C \(280^{\circ} \mathrm{C}\)
- D \(260^{\circ} \mathrm{C}\)
Answer & Solution
Correct Answer
(B) \(530^{\circ} \mathrm{C}\)
Step-by-step Solution
Detailed explanation
Temperature of inversion is \(\begin{aligned} & T_i=2 T_n-T_0 \\ & \therefore \quad T_i=2 \times 270-10=530^{\circ} \mathrm{C} \\ & \end{aligned}\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- The coils of a step-down transformer have 500 and 5000 turns. In the primary coil an \(\mathrm{AC}\) current of \(4 \mathrm{~A}\) at \(2200 \mathrm{~V}\) is sent. The value of the current and potential difference in the secondary coil isAP EAMCET 2020 Medium
- A well-cut diamond appears bright becauseAP EAMCET 2021 Easy
- A long straight wire carrying electric current is bent at its mid point to form an angle of as shown in the figure. Magnetic field at a point at a distance from the point of bending is
AP EAMCET 2018 Hard - In the given circuit, if the potential at point B is 24 V , the potential at point A is
AP EAMCET 2024 Medium - When an object is moved along the principle axis of a concave mirror placed in air, the image coincides with the object if the object is \(50 \mathrm{~cm}\) from the mirror. If the mirror is placed at a depth of \(20 \mathrm{~cm}\) in a transparent medium, the image coincides with the object when the object is \(40 \mathrm{~cm}\) from the mirror. The refractive index of the liquid isAP EAMCET 2019 Hard
- The following is not the method of reducing frictionAP EAMCET 2023 Easy
More PYQs from AP EAMCET
- If matrix \(D_1=\operatorname{diag}(a, b, c)\), matrix \(D_2=\operatorname{diag}(3,3,3)\) and \(\mathrm{A}\) is a skew symmetric matrix of \(3^{\mathrm{rd}}\) order, then \(\mathrm{Tr}\) \(\left(D_1 D_2 A+D_1 D_2+D_1 A+D_2 A\right)-\operatorname{Tr}\left(D_1+D_2\right)=\)AP EAMCET 2023 Medium
- Match the following:
AP EAMCET 2024 Easy - The temperature difference across two cylindrical rods \(A\) and \(B\) of same material and same mass are \(40^{\circ} \mathrm{C}\) and \(60^{\circ} \mathrm{C}\) respectively. In steady state, if the rates of flow of heat through the rods A and B are in the ratio \(3: 8\), the ratio of the lengths of the rods \(A\) and \(B\) isAP EAMCET 2024 Medium
- If \(\left(x_1, y_1\right)\) and \(\left(x_2, y_2\right)\) are the points on the parabola \(y^2=32 x\) each at a focal distance of 10 units, then \(2\left(x_1^2+x_2^2+y_1^2+y_2^2\right)=\)AP EAMCET 2017 Medium
- The number of electrons present in bonding and antibonding orbitals in \(\mathrm{O}_2^{2-}\) is respectivelyAP EAMCET 2018 Medium
- ' \(A\) ' is a protecting colloid. The following data is obtained for preventing the coagulation of 10 mL of gold sol to which 1 mL of \(10 \% \mathrm{NaCl}\) is added. What is the gold number of 'A'?
\(\begin{array}{|c|c|c|}\hline \text{Expt. No.} & \begin{array}{c} \text{Wt (in mg) of A} \\ \text{added to gold sol} \end{array} & \text{Coagulation} \\ \hline 1 & 40 & \text{Prevented} \\ \hline 2 & 35 & \text{Prevented} \\ \hline 3 & 25 & \text{Not prevented} \\ \hline 4 & 32 & \text{Not prevented} \\ \hline 5 & 33 & \text{Prevented} \\ \hline\end{array}\)AP EAMCET 2024 Medium