Question
Do all the thermocouples have a neutral temperature?
✓
Answer
As neutral temperature is The temperature of the hot junction of a thermocouple at which the electromotive force of the thermocouple attains its maximum value, when the cold junction is maintained at a constant temperature of 0°C.
So, answer is yes.
So, answer is yes.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Define the term “cut off frequency” in photoelectric emission. The threshold frequency of a metal is f. When the light of frequency 2f is incident on the metal plate, the maximum velocity of photo-electrons is $v_1$. When the frequency of the incident radiation is increased to 5f, the maximum velocity of photo-electrons is $v_2$. Find the ratio $v_1 : v_2.$
→- A rod of length l is moved horizontally with a uniform velocity ‘v’ in a direction perpendicular to its length through a region in which a uniform magnetic field is acting vertically downward. Derive the expression for the emf induced across the ends of the rod.
- How does one understand this motional emf by invoking the Lorentz force acting on the free charge carriers of the conductor? Explain.
Find the acceleration of the moon with respect to the earth from the following data:
Distance between the earth and the moon $= 3.85 \times 10^5$km and the time taken by the moon to complete one revolution around the earth $= 27.3$ days.
→Distance between the earth and the moon $= 3.85 \times 10^5$km and the time taken by the moon to complete one revolution around the earth $= 27.3$ days.
A bar magnet of magnetic moment 6J/T is aligned at 60° with a uniform external magnetic field of 0·44T. Calculate (a) the work done in turning the magnet to align its magnetic moment (i) normal to the magnetic field, (ii) opposite to the magnetic field, and (b) the torque on the magnet in the final orientation in case (ii).
The radius of innertmost orbit of hydrogen atom is $5.3 \times 10^{-11} m$. What is the radius of second excited state?
→A person looks at different trees in an open space with the following details. Arrange the trees in decreasing order of their apparent sizes.
| Tree | Height(m) | Distance form the eye(m) |
| A | 2.8 | 50 |
| B | 2.5 | 80 |
| C | 1.8 | 70 |
| D | 2.8 | 100 |
A current of 5.0A exists in the circuit shown in the figure. The wire PQ has a length of 50cm and the magnetic field in which it is immersed has a magnitude of 0.20T. Find the magnetic force acting on the wire PQ.
A small block of mass 100g is pressed against a horizontal spring fixed at one end to compress the spring through 5.0cm (figure). The spring constant is 100N/m. When released, the block moves horizontally till it leaves the spring. Where will it hit the ground 2m below the spring?
Consider the situation of the previous problem. A particle having charge q and mass m is projected from the point Q in a direction going into the plane of the diagram. It is found to describe a circle of radius r between the two plates. Find the speed of the charged particle.
A train approaching a platform at a speed of 54km/h sounds a whistle. An observer on the platform finds its frequency to be 1620Hz. The train passes the platform keeping the whistle on and without slowing down. What frequency will the observer hear after the train has crossed the platfrom? The speed of sound in air = 332m/s.