what is a solenoid ?? explain the magnetic field around it how can you increase the magnetic field around the solenoid
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ᴀ ꜱᴏʟᴇɴᴏɪᴅ, ꜱʜᴏᴡɴ ʜᴇʀᴇ ɪɴ ᴄʀᴏꜱꜱ ꜱᴇᴄᴛɪᴏɴ, ʜᴀꜱ ᴀ ꜱᴛʀᴏɴɢᴇʀ ᴇʟᴇᴄᴛʀᴏᴍᴀɢɴᴇᴛɪᴄ ꜰɪᴇʟᴅ ᴛʜᴀɴ ᴀ ꜱɪɴɢʟᴇ ꜱᴛʀᴀɪɢʜᴛ ᴡɪʀᴇ. ᴛʜᴇ ꜱᴛʀᴇɴɢᴛʜ ᴏꜰ ᴛʜᴇ ᴍᴀɢɴᴇᴛɪᴄ ꜰɪᴇʟᴅ ᴀʀᴏᴜɴᴅ ᴀ ꜱᴏʟᴇɴᴏɪᴅ ᴄᴀɴ ʙᴇ ɪɴᴄʀᴇᴀꜱᴇᴅ ʙʏ: ɪɴᴄʀᴇᴀꜱɪɴɢ ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏꜰ ᴛᴜʀɴꜱ ᴏɴ ᴛʜᴇ ᴄᴏɪʟ. ɪɴᴄʀᴇᴀꜱɪɴɢ ᴛʜᴇ ᴄᴜʀʀᴇɴᴛ. ᴘʟᴀᴄɪɴɢ ᴀɴ ɪʀᴏɴ ᴄᴏʀᴇ ɪɴꜱɪᴅᴇ ᴛʜᴇ ꜱᴏʟᴇɴᴏɪᴅ.
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