Question

Which one of the following industries manufactures telephones, computer, etc?

• A. Steel
• B. Electronic
• C. Aluminium
• D. Information Technology

Answer 1

The correct option is B

Electronic

Answer: The correct answer is option (B) – Electronic Industry.

• Among different categories of industries, the Electronic industry will be categorized under the Consumer Industry.
• In consumer industries, the goods produced are directly used by the consumers.

• Some of the important minerals which are used in the Electronics industry are Mica and Copper.

Mica

• Mica is one of the critical minerals used in electronic and electric industries.
• This is due to many important properties such as resistance to high voltage, insulating properties, low power loss factor, excellent di-electric strength.
• Mica can be clear, black, green, red, yellow or brown.
• Mica is a mineral made up of a series of leaves or plates.
• It can be split into thin sheets, very easily.
• Mica sheet of a few centimeters high can be layered in thousand sheets.
• Major Mica producing region in Rajasthan is the Ajmer region.
• The leading producer of Mica is the Koderma Gaya – Hazaribagh, in Jharkhand.
• In Andhra Pradesh, Nellore belt is the important producer of Mica.
• In the northern edge of the Chota Nagpur plateau, Mica deposits can be found.

Copper

• Copper is mainly used in chemical industries, electronics, electrical cables.
• Copper is a good conductor, ductile and malleable.
• The leading producers of copper in India are Singhbhum district of Jharkhand, Khetri mines in Rajasthan, and Balaghat mines in Madhya Pradesh.