The artificial magnet used to detect the direction in the laboratory is:
U-shaped magnet
horse shoe type magnet
electromagnet
magnetic compass
Hence, the correct option is D.
Fill in the blanks:
(i) Artificial magnets are made in different shapes such as ___________, ____________, and ___________.
(ii) The materials which are attracted towards magnets are called ___________.
(iii) Paper is not a ___________material.
(iv) In olden days, sailors used to find direction by suspending a piece of ____________.
(v) A magnet always has ___________ poles.