A heating element using nichrome connected to a 230V supply draws an initial current of 3.2 A which settles after a few seconds to a steady value of 2.8A. What is the steady temperture of the heating element if the heating the room temperature is `27.0^(@)C`? Temperature coefficient of resistance of nichrome averaged over the temperature range involved is `1.70 xx 10^(-4) .^(@)C^(-1)`.

Options

A. `840^(@)C`
B. `871^(@)C`
C. `1040^(@)C`
D. `1067^(@)C`

Answer

B