ExamPlay Light Logo
Se connecter

Physics for IGCSE & O level - Magnets And Currents (Section 8 - No. 35)

In a hard disk drive, what is used to write information onto the disk?
A laser.
An electromagnet.
A capacitor.
A resistor.

Explication

An electromagnet.

Commentaires (0)

Connectez-vous pour commenter
Publicité
BrainBehindX Inc Logo
©2026; Alimenté par BrainBehindX Inc