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The copper armature winding of a motor is subjected to an operating temperature of 80C. The room temperature is 20 C. The percentage change

The copper armature winding of a motor is subjected to an operating temperature of 80C. The room temperature is 20 C. The percentage change in resistance of the armature winding from cold staring condition to normal running will be nearly: (a) 10% (b) 16% (c) 20% (d) 24%

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