what is demagnetisation give three ways to demagnetize a magnet
Answers
ᴅᴇᴍᴀɢɴᴇᴛɪᴢᴇ ᴀ ᴍᴀɢɴᴇᴛ ʙʏ ʜᴇᴀᴛɪɴɢ ᴏʀ ʜᴀᴍᴍᴇʀɪɴɢ. ɪғ ʏᴏᴜ ʜᴇᴀᴛ ᴀ ᴍᴀɢɴᴇᴛ ᴘᴀsᴛ ᴛʜᴇ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ ᴄᴀʟʟᴇᴅ ᴛʜᴇ ᴄᴜʀɪᴇ ᴘᴏɪɴᴛ, ᴛʜᴇ ᴇɴᴇʀɢʏ ᴡɪʟʟ ғʀᴇᴇ ᴛʜᴇ ᴍᴀɢɴᴇᴛɪᴄᴅɪᴘᴏʟᴇs ғʀᴏᴍ ᴛʜᴇɪʀ ᴏʀᴅᴇʀᴇᴅ ᴏʀɪᴇɴᴛᴀᴛɪᴏɴ. ᴛʜᴇ ʟᴏɴɢ-ʀᴀɴɢᴇ ᴏʀᴅᴇʀ ɪs ᴅᴇsᴛʀᴏʏᴇᴅ ᴀɴᴅ ᴛʜᴇ ᴍᴀᴛᴇʀɪᴀʟ ᴡɪʟʟ ʜᴀᴠᴇ ʟɪᴛᴛʟᴇ ᴛᴏ ɴᴏ ᴍᴀɢɴᴇᴛɪᴢᴀᴛɪᴏɴ
One way to make a magnet is by applying an electrical field (electromagnet), so it makes sense you can use alternating current to remove magnetism, too. To do this, you pass AC current through a solenoid. Start with a higher current and slowly reduce it until it's zero.
Yes, it is possible for a permanent magnet to lose its magnetism. ... With a strong enough magnetic field of opposite polarity, it is therefore possible to demagnetize the magnet [whether this comes from another permanent magnet, or a solenoid].