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Magnetism And Matter — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsMagnetism And Matter1 Mark
MCQ
For protecting a sensitive equipment from external magnetic field, it should be:
  • ✓
    Placed inside an iron can.
  • B
    Placed inside an aluminium can.
  • C
    Surrounded with fine copper sheet.
  • D
    Wrapped with insulation around it when passing current through it.
✓

Answer

Correct option: A.
Placed inside an iron can.

Iron is a ferromagnetic substance, so there are no magnetic lines of force inside it. So to protect the sensitive equipment from external magnetic field, it should be placed inside an iron can.

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