NEET Physics Ohm's Law MCQ Question
What is the steady temperature of the heating element connected to a 230 V supply, if it draws an initial current of 3.2 A and settles to a steady value of 2.8 A, considering the room temperature is 27.0 °C?
847 °C
75.3 °C
100 °C
27 °C
Correct Answer
Detailed Explanation
The steady temperature of the heating element when the heating effect due to the current equals the heat loss to the surroundings is calculated to be 847 °C, as stated in the context. This temperature is derived using the temperature coefficient of resistance of nichrome.
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