1
Question
Why does the connecting cord of an electric heater not glow hot while the heating element does?
Why does the connecting cord of an electric heater not glow hot while the heating element does?
Open in App
Solution
The heating element of the heater is made up of an alloy which has very high resistance. So, when current flows through the heating element, it becomes too hot and glows red due to the heating effect of current. But the resistance of cord which is usually of copper or aluminium is very low so it does not glow.
The heating element of the heater is made up of an alloy which has very high resistance. So, when current flows through the heating element, it becomes too hot and glows red due to the heating effect of current. But the resistance of cord which is usually of copper or aluminium is very low so it does not glow.
Suggest Corrections
199
Similar questions
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
