MCQ
In a cassette player, material used for coating magnetic tapes is:
- Acobalt
- BCoFe2O4
- CNiFe2O4
- Dnickel
✓
Answer
- NiFe2O4
Explanation:
In cassette player, materials used for magnetic tapes is NiFe2O4.
Ferrites (Ferromagnetic material) is used for Coating magnetic tapes.
In cassette player or for building memory store in modern computers.
Most common ones are MnFe2O4, FeFe2O4, NiFe2O4 etc.
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