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Give scientific reasons.(a) The copper wire used in an electro-magnet is insulated.(b) In an electric bell, the electric current stops again and again.(c) Electrical switches are made of plastic.(d) The fuse wire is made of a good conductor. |
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Answer» Give scientific reasons. (a) The copper wire used in an electro-magnet is insulated. (b) In an electric bell, the electric current stops again and again. (c) Electrical switches are made of plastic. (d) The fuse wire is made of a good conductor. |
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