Question

Nichrome and copper wire of same length and same radius are connected in series. Current I is passed through them.
Which wire gets heated up more?
Justify your answer.

Answer 1

copper : resistivity : 16.78 nΩ·m (at 20 °C)nichrome : (1.0—1.5) micro Ω·m (at 27 °C)as can be seen from above… the resistance for nichrome will be about 60 to 1000 times higher than copper…for same geometry/temp etcassuming similar ambient temperature for the wire: the heat produced in wires will be proportional to resistance and square of current…that means nichrome will absorb 60 to 1000 times more energy…the nichrome will attain more temperature… but that temperature doesn’t have a linear relation with heat dissipated…so the temp rise will not be in the same ratio…

Answer 2

nichrome wire will produce or heated up more because it has more resistance than copper .
if my answer is helpful for you then please mark as brain list.
if u have any doubt then comment