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A natural magnet is a device that retains magnetic property
1 with a power source
2 without a power source
3 with the help of copper wires
4 none of these
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The iron ore magnetite, also known as lodestone, is a natural permanent magnet. Other permanent magnets can be made by subjecting certain materials to a magnetic force. When the force is removed, these materials retain their own magnetic properties. ... They are made by surrounding certain materials with a coil of wire.
★ᴘʟᴇᴀsᴇ ᴍᴀʀᴋ ᴀs ʙʀᴀɪɴʟɪᴇsᴛ ᴀɴsᴡᴇʀ ᴀɴᴅ ғᴏʟʟᴏᴡ ᴍᴇ
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Answer:
without power source right answer
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