Question

Explain y the current that makes a heater element very hot, only sightly warms the connecting wire leading to heater.

Answer 1

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The current that makes a heater element very hot, only sightly warms the connecting wire leading to heater because they have extremely low resistance due to which negligible heat is produced in them by passing current.


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Answer 2

according to the joules law of heating
work done=current^2×resistance of the coil×time for which it is operated
heater element is made up of generally high resistance material like alloys so the current makes the heater element very hot than the connecting wires