Science, asked by muskan2161, 1 year ago

plsssss.... answer the question 6 part 2

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Answered by Anonymous

sir answers are following ❤️❤️✋✋✋✋✌️✌️✌️

because. cupper is reactive ..

actually in the permanent magnet .. didn't have strong power then electromagnetic .. .and permanent magnet, magnetic power is permanent .not be changed able

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Answered by prerna2018

Because permanent (bar) magnets are comparatively weak. Temporary magnets are strong and can be magnetized according to needs. Whereas permanent magnets cannot be magnetized. So, electromagnets are used for transporting heavy iron machinery in industries.

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