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Which material is commonly used in electronic devices?

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in Engineering Material & Metallurgy by (773k points)
Which material is commonly used in electronic devices?

(a) Alumina

(b) Titania

(c) Silica

(d) Germanium

The question was asked in unit test.

This intriguing question originated from Ceramics in chapter Non Metallic Materials of Engineering Material & Metallurgy

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Best answer
Correct choice is (d) Germanium

Best explanation: Germanium (Ge) is a metalloid element frequently used in electronic devices. Silicon (Si) is also known to be used in semiconductors and other devices. Alumina is used as an electrical insulator, while Titania and Silica are used as pigment and abrasives respectively.

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