Question

give reasons
1. the heating element in a heating device becomes red hot but not the connecting chord to the device

Answer 1

Answer:

The heating element is made from an element with a very high resistance while the connecting cord is made from an element with very low resistance.

we know that,

H $\alpha$ I²RT

∴ H $\alpha$ R

hence, the more the resistance, the more hotter the element gets...

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