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What is the steady temperature of the heating element using nichrome, connected to a 230 V supply, if it draws an initial current of 3.2 A which settles after a few seconds to a steady value of 2.8 A, and the room temperature is 27.0 °C? (Given the temperature coefficient of resistance of nichrome averaged over the temperature range involved is 1.70 × 10 ⁻⁴ ^ C ⁻¹ .)

Options

  1. A1012.94 °C
  2. B994.28 °C
  3. C867.00 °C
  4. D1048.40 °C

Correct answer

C. 867.00 °C

Step-by-step solution

Correct Option is : (C) 867.00 °C

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