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_____ pushes the heads away from the surface as they rotate at their standard rates.

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_____ pushes the heads away from the surface as they rotate at their standard rates.

(a) Magnetic tension

(b) Electric force

(c) Air pressure

(d) None of the mentioned

The question was asked in an online interview.

Enquiry is from Secondary Storage topic in portion Memory System of Computer Architecture

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The correct answer is (c) Air pressure

The best I can explain: Due to the speed of rotation of the discs air pressure develops in the hard disk.

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