Question

Which mineral is used in electrical industries?
A) Gold
B) Mica
C) Silver
D) Sulphur

Answer 1

Hint: A mineral is an inorganic solid that forms spontaneously and has a specific chemical composition and atomic arrangement. This may appear to be a mouthful, but once broken down, it becomes much easier to understand. Minerals are found in nature.

Complete answer:
Mica is a mineral that is utilised in the electronic and electrical sectors and is regarded as one of the most significant minerals. Mica sheets are hydrophilic, flexible, light, robust, reflective, and refractive, as well as being malleable. Mica is stable in the presence of electricity, light, moisture, and high temperatures. It has high dielectric strength as well. The dielectric strength of a material is defined as the highest voltage required to cause a dielectric breakdown. It's measured in volts per unit of thickness.

Mica has a low power loss factor as well. This indicates that anytime Mica is employed as an insulator in a device, the resistance stays very high and no power is lost. Mica is also a great industrial insulation material because of its high thermal resistance. It offers excellent resistance to electricity, light, and moisture, making it suitable for a wide range of applications in a variety of industries. Mica may also be found in windows, kerosene heaters, and thermal insulation, among other applications.

Therefore the correct answer is option ‘B’.

Note: Electric power generation, transmission, distribution, and sale to the general public and industry are all covered under the electric power industry. In the excavating business, ground mica is also utilised. In the manufacture of tyres, the rubber industry utilises ground mica as an additive and as a fungal lubricant.