Define temp,coefficient of resistance and give it's units.
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- ᴛʜᴇ ʀᴇsɪsᴛᴀɴᴄᴇ-ᴄʜᴀɴɢᴇ ғᴀᴄᴛᴏʀ ᴘᴇʀ ᴅᴇɢʀᴇᴇ ᴄᴇʟsɪᴜs ᴏғ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ ᴄʜᴀɴɢᴇ ɪs ᴄᴀʟʟᴇᴅ ᴛʜᴇ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ ᴄᴏᴇғғɪᴄɪᴇɴᴛ ᴏғ ʀᴇsɪsᴛᴀɴᴄᴇ. ᴛʜɪs ғᴀᴄᴛᴏʀ ɪs ʀᴇᴘʀᴇsᴇɴᴛᴇᴅ ʙʏ ᴛʜᴇ ɢʀᴇᴇᴋ ʟᴏᴡᴇʀ-ᴄᴀsᴇ ʟᴇᴛᴛᴇʀ “ᴀʟᴘʜᴀ” (α). ᴀ ᴘᴏsɪᴛɪᴠᴇ ᴄᴏᴇғғɪᴄɪᴇɴᴛ ғᴏʀ ᴀ ᴍᴀᴛᴇʀɪᴀʟ ᴍᴇᴀɴs ᴛʜᴀᴛ ɪᴛs ʀᴇsɪsᴛᴀɴᴄᴇ ɪɴᴄʀᴇᴀsᴇs ᴡɪᴛʜ ᴀɴ ɪɴᴄʀᴇᴀsᴇ ɪɴ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ.
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Answer:
Ramesh was sitting at a railway station. There, he saw a coolie, who was carrying
heavy luggage on his head. Ramesh watched him from a distance and reaches to help
him out. He helped the coolie in placing the luggage at its place. The coolie thanked
Ramesh for his kindness. Ramesh asked him to be careful in future.
(i) What work was done by the coolie on the luggage from Physics point of view?
(ii) Which values are displayed by Ramesh?
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