Question: 3) A resistive heating element operates on 220V. When it is switched on at 20C, the heating element carries an initial current of 2.5 A.

3) A resistive heating element operates on 220V. When it is switched on at 20C, the heating element carries an initial current of 2.5 A. Later on, the current reaches the final value of 0.6A. If the temperature coefficient of resistivity of the element is =3.2103C1, then the final operating temperature (in C ) of the element is: (A) 488.8 (B) 684.1 (C) 1009.6 (D) 1660.6 (E) 3613.8

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