Q.36. For protecting a magnetic needle it should be placed :-
(1) in an iron box
(2) in wooden box
(3) in plastic box
(4) none of these
Dear Student,
For protecting the needle it should be kept in an iron box because the iron box will divert the field, causing a lot of it to flow within the needle itself instead of in the air.
Regards
For protecting the needle it should be kept in an iron box because the iron box will divert the field, causing a lot of it to flow within the needle itself instead of in the air.
Regards