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وارد شوید

Physics for IGCSE & O level - Magnets And Currents (Section 1 - No. 1)

What type of material is a hard drive made of?
Aluminum
A layer of a metal made by coating with an alloy like Iron Oxide
A magnetic material
A plastic

توضیح

The recording surface of a hard drive is made of a thin layer of a magnetic material.

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