Why does the cord of an electric heater not glow while the heating element does
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The heating element of the heater is made up of alloy which has very high resistance so when current flows through the heating element, it becomes too hot and glows red. But the resistance of cord which is usually of copper or aluminium is very law so it does not glow.
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ᴛʜᴇ ʜᴇᴀᴛɪɴɢ ᴇʟᴇᴍᴇɴᴛ ᴏꜰ ᴛʜᴇ ʜᴇᴀᴛᴇʀ ɪꜱ ᴍᴀᴅᴇ ᴜᴩ ᴏꜰ ᴀʟʟᴏy ᴡʜɪᴄʜ ʜᴀꜱ ᴠᴇʀy ʜɪɢʜ ʀᴇꜱɪꜱᴛᴀɴᴄᴇ ꜱᴏ ᴡʜᴇɴ ᴄᴜʀʀᴇɴᴛ ꜰʟᴏᴡꜱ ᴛʜʀᴏᴜɢʜ ᴛʜᴇ ʜᴇᴀᴛɪɴɢ ᴇʟᴇᴍᴇɴᴛ, ɪᴛ ʙᴇᴄᴏᴍᴇꜱ ᴛᴏᴏ ʜᴏᴛ ᴀɴᴅ ɢʟᴏᴡꜱ ʀᴇᴅ. ʙᴜᴛ ᴛʜᴇ ʀᴇꜱɪꜱᴛᴀɴᴄᴇ ᴏꜰ ᴄᴏʀᴅ ᴡʜɪᴄʜ ɪꜱ ᴜꜱᴜᴀʟʟy ᴏꜰ ᴄᴏᴩᴩᴇʀ ᴏʀ ᴀʟᴜᴍɪɴᴜᴍ ɪꜱ ᴠᴇʀy ʟᴏᴡ ꜱᴏ ɪᴛ ᴅᴏᴇꜱ ɴᴏᴛ ɢʟᴏᴡ.
ʜᴏᴩᴇ ᴛʜɪꜱ ʜᴇʟᴩᴇᴅ yᴏᴜ
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