Question

what should be the nature of heating element and electrical appliance and why (class10)​

Answer 1

Answer:

Characteristics of heating element used in electric heating device are :

(1) : It must have high resistivity so that it produces more heat even if low current is flowing through it.

(2) : It must have high melting point so that it does not melt even at high temperatures.

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Answer 2

Answer:

Characteristics of heating element used in electric heating device are:

→It must have high resistivity so that it produces more heat even if low current is passed through it.

→It must have high melting point so that it does not melt even at high temperature.

→It must have low temperature coefficient of resistance.

That's why Nichrome, an alloy of chromium and nickel, is used as heating element in electric heating device as Nichrome as well the above characteristics.