The field coil of a machine is wound with 700 turns of copper wire of cross sectional area 0,375mm^2 .The mean length per turn is 400mm and thr resistivity of copper is 16×10^-3 micro ohm at 0 degrees Celsius. Determine the resistance of the coil at temperature of 60 degrees Celsius if the temperature coefficient of resistance referred to at 0 degrees Celsius, is 0,00426per degrees Celsius.
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