Question
Physics Question on Magnetism and matter
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
Answer
placed inside an iron can
Explanation
Solution
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.