Question

In the electric equipment producing heat e.g iron,electric heater,boiler toaster etc, an alloy such as nichrome is used,not pure(Give scientific reason)

Answer 1

friend, in such electronic machines heat needs to be produce in large amount due to which element which have high resistivity is used to generate heat for such purpose nichrome is perfect as it have high melting point and if it is not pure large amount of heat is produce due to resistance