The Heating Element Of An Electric Heater Glows While The Cord Does Not Glow

The cord of an electric heater is made of thick copper wire and has much lower resistance than the heating element. For the same current i flowing through the cord and the element heat produced in the element is much more than that produced in the cord. The heating element of the heater is made up of alloy which has very high resistance so when current flows through the heating element it becomes too hot and glows red.

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The heating element of an electric heater is a resistor.

The heating element of an electric heater glows while the cord does not glow.

The amount of heat produced by it is proportional to its resistance. As a result the element becomes very hot and glows whereas the cord does not becomes hot. On the other hand the resistance of the cord is low. The heating element of the heater is made up of alloy which has very high resistance.

The resistance of the element of an electric heater is very high. The heating element of the heater is made up of alloy which has very high resistance so when current flows through the heating element it becomes too hot and glows red. So when current flows through the heating element. So when current flows through the heating element it becomes too hot and glows red due to heating effect of current.

But the resistance of cord which is usually of copper or aluminium is very law so it does not glow. But the resistance of cord which is usually of copper or aluminum is very low so it does not glow. The heating element of heater is made up ofg alloy which has very high resistance. As current flows through the heating element it becomes too hot and glows red.

It becomes too hot and glows red due to heating effect of current. But the resistance of cord which is usually of copper or aluminium is very low so it does not glow.

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