Question: A 5 0 0 - W heating coil designed to operate from 1 1 0 V is made of Nichrome wire 0 . 5 0

A 500-W heating coil designed to operate from 110 V is made of Nichrome wire0.500 mm in diameter. (a) Assuming the resistivity of the Nichrome remains constantat its 20oC value, find the length of wire used. (b) What If? Now consider thevariation of resistivity with temperature. What power is delivered to the coil of part(a) when it is warmed to 1200oC?

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