Which of the following minerals is indispensable for electric and electronic industries?a)Ironb)Nickelc)Manganesed)MicaCorrect answer is option 'D'. Can you explain this answer?

Question

Answer

Correct answer is option D.
Mica is an indispensable mineral for electrical and electronics industries because it is a non-conductor of electricity,has excellent di-electric strength, low power loss factor, insulating properties and resistance to high voltage.

Answer

The correct answer is D as Mica is one of the most indispensable minerals used in electric and electronic industries, due to its Di-electric strength, low power factor, insulating properties and resistance to high voltage

Answer

Mica is indispensable for electric and electronic industries because of its unique properties and applications.

1. Electrical Insulation:
- Mica is an excellent electrical insulator due to its high dielectric strength and low power loss.
- It can withstand high voltage and is commonly used as insulation material in electrical equipment, such as transformers, capacitors, and electric motors.
- Mica sheets or tapes provide insulation between conducting parts, preventing electrical short circuits.

2. Heat Resistance:
- Mica has excellent thermal properties, including high thermal stability and low thermal conductivity.
- It can withstand high temperatures without melting or losing its structural integrity.
- Mica is used in electrical heating appliances, such as toasters, hair dryers, and electric irons, where it acts as a thermal insulator and prevents heat transfer to the outer surface.

3. Transparency to Radio Waves:
- Mica is transparent to radio waves, making it suitable for applications in microwave ovens and other electronic devices that emit or receive radio frequency signals.
- It allows the waves to pass through without significant attenuation or distortion.

4. Capacitors and Resistors:
- Mica capacitors are widely used in electronic circuits for their stability, high precision, and low loss characteristics.
- Mica also finds applications in resistors, where it acts as a resistor element with high resistance and stability.

5. Substrate for Thin Film Transistors:
- Mica is used as a substrate material for thin film transistors (TFTs) in display technologies, such as LCD (liquid crystal display) and OLED (organic light-emitting diode) screens.
- It provides a flat and stable surface for the deposition of semiconductor layers and other electronic components.

In conclusion, mica is indispensable for electric and electronic industries due to its electrical insulation properties, heat resistance, transparency to radio waves, and applications in capacitors, resistors, and as a substrate for thin film transistors. Its unique combination of properties makes it a valuable mineral for various electronic devices and equipment.

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