Question

In the electric equipment producing
heat e.g. iron, electric heater, boiler,
toaster etc. an alloy such as Nichrome
is used, not pure metals.
​

Answer 1

Answer:

In the electric equipment producing heat, such as iron, electric heater, boiler, toaster etc., an alloy such as Nichrome is used, not pure metals because of the following reasons: (i) Resistivity of Nichrome is more compared to pure metal. ... (iii) Nichrome does not get oxidised when heated in air whereas metal does.

Explanation:

Answer 2

Answer:

Resistivity of alloys like nichrome is more than pure metal so they will get heated easily on the passage of a small amount of current. They also have a high melting point and do not oxidize reading at high temperature. So in the electric equipment producing heat e.g. iron, electric heater, boiler, toaster, etc an alloy such as Nichrome is used, not pure metals.