Question

The insulator used in the element of an electric iron is ______.

Answer 1

1. Mica is a good insulator of electricity and heat and can withstand high temperatures.
2. It is also transparent.
3. These properties were found suitable for using mica as an insulating material in an electric iron.
4. Mica electrically insulates the filament from the body of the iron, which can accidentally live if there is a breakdown of the insulator.

Hence, the insulator used in the element of an electric iron is mica.