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The thermo em...

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The thermo emf of a thermocouple varies with the temperature theta of the hot junction as E=a theta +b theta square V Where the ratio of a and b is 700^°C. If the cold junction is kept at 0^°C,then the neutral temperature is

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Q. The thermo-emf of a thermocouple varies with the temperature

θ

of the hot junction as

E = a θ + b θ^{2}

in volts where the ratio

a / b

700^{0} C

. If the cold junction is kept at

0^{0} C

, then the neutral temperature is:

Q. The thermo emf of a hypothetical thermocouple varies with the temperature e of hot junction as

E = a θ + {b θ}^{2}

in volts, where the ratio

\frac{a}{b}

700^{\circ} C

. If the cold junction is kept at

0^{\circ} C

then the neutral temperature is

Q. The thermo e.m.f. of a hypothetical thermocouple varies with the temperature

θ

of hot junction as

E = a θ + b θ^{2}

in volts, where the ratio

\frac{a}{b}

700^{\circ} C

. If the cold junction is kept at

0^{\circ} C

, then the neutral temperature is:

Q. Keeping the cold junction at

0^{0} C

when hot junction is at

50^{0} C

the thermo emf is 2 mV and when hot junction is at

100^{0} C

thermo emf is 3.5 mV. Neutral temperature of that thermocouple (thermo emf varies as

e = a t + b t^{2}

)

Q. In a thermocouple, the thermo emf produced is 3

μ

V per one degree difference of temperature between two junctions. When the cold junction of such a thermocouple is at

20^{0} C

, the thermo emf is 0.3 mV .Then the temperature of the hot junction is:

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