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The thermo e.m.f E in volts of a certain...

The thermo e.m.f E in volts of a certain thermo- couple is found to vary with temperature difference `theta` in `.^(@)C` between the two junctions according to the relation
`E=30 theta-(theta^(2))/(15)`
The neutral temperature for the thermo-couple will be -

A

`450^(@)C`

B

`400^(@)C`

C

`225^(@)C`

D

`30^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
C
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