A nichrome wire of resistivity 100 x 10-6 ohm metre and copper wire of resistivity 1 62 x 10-8 ohm - Science - Electricity

Question

A nichrome wire of resistivity 100 x 10-6 ohm metre and copper
wire of resistivity 1 62 x 10-8 ohm metre of same length and same
area of cross section are connected in series current is passed
through them why does the nichrome wire gets heated first?
Please reply!!

Ankur · Accepted Answer

As resisivity of Nichrome wire is greater than the resistivity of
copper wire So, it would have high resistance than that of copper
wire and hence heat produced in Nichrome wire is more than that of
copper wire as heat produced in a conductor when a current I is
passed through it depends upon the value of resistance of the
conductor Since resistance of Nichrome wire is greater, so it would
get heated first
In addition, nichrome is an alloy and as we know that alloys have
much higher resistivity than that of metals

A nichrome wire of resistivity 100 x 10-6 ohm metre and copper wire of resistivity 1.62 x 10-8 ohm metre of same length and same area of cross section are connected in series current is passed through them why does the nichrome wire gets heated first? Please reply!!

A nichrome wire of resistivity 100 x 10-6 ohm metre and copper wire of resistivity 1.62 x 10-8 ohm metre of same length and same area of cross section are connected in series current is passed through them why does the nichrome wire gets heated first?

Please reply!!