Question

12. Two identical wires one of the nichrome and other of copper are connected in series
and a current (1) is passed through them. State the change observed in the
temperature of the two wires. Justify answer. State the law which explains the
above observation.
13​

Answer 1

You will see that nicrome wire is getting hot earlier than the copper wire because it has higher resistivity than copper so it will convert the electrical energy into heat energy more earlier than copper wire . And the law here applied is called as Joule's Law Of Heating H=I^2×R×T Which states that heat is directly proportional to current,resistance and time