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For problem 55 calculate the power in watts at 200 C if the power at 800 C is 829 W. (Answer in 5 sig. figs.)

55 SSM A Nichrome heater dissipates 500 W when the applied
potential difference is 110 V and the wire temperature is 800°C.
What would be the dissipation rate if the wire temperature were
held at 200°C by immersing the wire in a bath of cooling oil? The
applied potential difference remains the same, and a for Nichrome
at 800°C is 4.0 × 10-4K-¹.

QUESTION 3
For problem 26.55 calculate the power in watts at
200 C if the power at 800 C is 829 W. (5 sig. figs.)

Expert Solution

Step 1

$R_{H}$ be the resistance at the higher temperature $(800 ° C)$ and let $R_{L}$ be the resistance
at the lower temperature $(200 ° C)$ .

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