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Current Electricity question

2004 · Shift 0 · Q138

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JEE Main
Physics
Current Electricity
2004 · Shift 0 · Q138

Current Electricity question

2004 · Shift 0 · Q138

JEE MainPhysicsCurrent ElectricityMCQ+4 / −1

The thermo

emf

of a thermocouple varies with temperature

\theta

of the hot junction as

E = a\theta + b{\theta ^2}

in volts where the ratio

a/b

is

{700^ \circ }C.

If the cold junction is kept at

{0^ \circ }C,

then the neutral temperature is

A
${1400^ \circ }C$
B
${350^ \circ }C$
C
${700^ \circ }C$
D
No neutral temperature is possible for this termocouple.

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