Calculate the temperature of the winding

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Reference no: EM131340476

The field winding of a d.c. motor is connected to a 110 V supply. At a temperature of 18°C, the current drawn is 0.575 A. After running the machine for some time the current has fallen to 0.475 A, the voltage remaining unchanged. Calculate the temperature of the winding under the new conditions, assuming that the temperature coefficient of resistance of copper is 0.004 26/°C at 0°C.

Reference no: EM131340476

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