A nichrome heater dissipates 1250 w when the applied, Physics

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A nichrome heater dissipates 1250 w when the applied

A Nichrome heater dissipates 1250 W when the applied potential difference is 240 Volt and the wire temperature is 800°C. Determine what would be the dissipation rate if the wire temperature were held at 400°C by immersing the wire in a bath of cooling oil? The applied potential difference remains the equal, and α for Nichrome at 800°C is 4.0 x 10-4/K.

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