[youtube http://www.youtube.com/watch?v=LYq2hHleLeM&color1=0xb1b1b1&color2=0xcfcfcf&hl=en&fs=1] Warning: Do not swallow or eat magnets. Magnets could interfere with ...
(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 ...
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