For protecting a sensitive equipment from external magnetic field, it should be

Question

For protecting a sensitive equipment from external magnetic field, it should be (A) 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

Tardigrade Admin · Accepted Answer

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.

Q. For protecting a sensitive equipment from external magnetic field, it should be

placed inside an iron can

placed inside an aluminium can

surrounded with fine copper sheet

wrapped with insulation around it when passing current through it

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.