An electric toaster uses nichrome for its heating element

PHYSICS · Subjective · CBSE · Physics · Current Electricity · Current Electricity

Problem

An electric toaster uses nichrome for its heating element. When a negligibly small current passes through it, its resistance at room temperature (

27.0^\circ\text{C}

) is

75.3\,\Omega

. When the toaster is connected to a

230\text{ V}

supply, the current settles after a few seconds to a steady value of

2.68\text{ A}

. What is the steady temperature of the nichrome element? The average temperature coefficient of resistance of nichrome over this range is

1.70\times10^{-4}\,{}^\circ\text{C}^{-1}