Question

Why do electrical wire hang loosly instead of being stretched tightly?​

Answer 1

$\huge \red {☆AnsWer}$

ᴇᴄᴀᴜsᴇ ᴏғ ᴛʜɪs ᴘʜᴇɴᴏᴍᴇɴᴀ ᴛʜᴇ ᴡɪʀᴇ ᴜɴᴅᴇʀɢᴏᴇs ᴇxᴘᴀɴsɪᴏɴ ᴀɴᴅ ᴄᴏɴᴛʀᴀᴄᴛɪᴏɴ ᴇᴠᴇʀʏ sɪɴɢʟᴇ ᴅᴀʏ, ᴛʜᴜs ɪғ ᴛʜᴇ ᴡɪʀᴇs ᴡᴇʀᴇ ᴛɪɢʜᴛʟʏ ʜᴇʟᴅ ɪɴ ᴛʜᴇ ʟᴏɴɢ ʀᴜɴ ᴛʜᴇ ᴡɪʀᴇs ᴍɪɢʜᴛ ɢᴇᴛ sɴᴀᴘᴘᴇᴅ ʙᴇᴄᴀᴜsᴇ ᴏғ ᴛʜᴇ ᴄᴏɴᴛʀᴀᴄᴛɪᴏɴ ɪᴛ ғᴀᴄᴇᴅ.

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Answer 2

Answer:

Each wire lines are often heavily loaded because of increased consumption,and the conductors ,which are generally made of copper or aluminum,expand when heated