The cold junction of a thermocouple is at $0^{\circ} C$. The thermo e.m.f. produced in the thermocouple is given by the equation $E = 16T - 0.04T^2$, where $T$ is the temperature of the hot junction. The temperature of inversion and the neutral temperature of the thermocouple are:
- A$200^{\circ} C ; 400^{\circ} C$
- B$400^{\circ} C ; 200^{\circ} C$
- C$200^{\circ} C ; 300^{\circ} C$
- D$300^{\circ} C ; 200^{\circ} C$
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Similar Questions
Column $- I$ gives certain physical terms associated with the flow of current through a metallic conductor. Column $- II$ gives some mathematical relations involving electrical quantities. Match Column $- I$ and Column $- II$ with appropriate relations.
Column $- I$ Column $- II$ $(A)$ Drift Velocity $(P)$ $\frac{m}{n e^{2} \rho}$ $(B)$ Electrical Resistivity $(Q)$ $n e v_{d}$ $(C)$ Relaxation Period $(R)$ $\frac{e E}{m} \tau$ $(D)$ Current Density $(S)$ $\frac{E}{J}$
| Column $- I$ | Column $- II$ |
| $(A)$ Drift Velocity | $(P)$ $\frac{m}{n e^{2} \rho}$ |
| $(B)$ Electrical Resistivity | $(Q)$ $n e v_{d}$ |
| $(C)$ Relaxation Period | $(R)$ $\frac{e E}{m} \tau$ |
| $(D)$ Current Density | $(S)$ $\frac{E}{J}$ |
MediumNEET 2021
View SolutionAn ammeter with a zero error is connected in series with a silver voltameter. The ammeter reads $0.54 \ A$. In $1 \ hour$, $2.0124 \ g$ of silver is deposited. If the electrochemical equivalent of silver is $1.118 \times 10^{-3} \ g \ C^{-1}$, then the error in the ammeter reading is ............... $A$.
Difficult
View SolutionThe temperature of the cold junction and the neutral temperature of a thermocouple are $15\,^{\circ}C$ and $280\,^{\circ}C$ respectively. The temperature of inversion is .............. $^{\circ}C$.
Medium
View Solution$A$ galvanometer $(G)$ of $2 \ \Omega$ resistance is connected in the given circuit. The ratio of charge in $C_1$ $(4 \ \mu F)$ and $C_2$ $(6 \ \mu F)$ is:
DifficultJEE MAIN 2024
View SolutionAssertion : An electric bulb becomes dim,when the electric heater in parallel circuit is switched on.
Reason : Dimness decreases after sometime.
Reason : Dimness decreases after sometime.
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