Question

What should be the nature of a V-I graph if current is independent of the potential difference ? Is this event possible ? For which material would this graph be true ?​

Answer 1

ʀᴇғ . ɪᴍᴀɢᴇ.

(ɪ) ᴛʜᴇ ᴠ-ɪ ɢʀᴀᴘʜ ᴏғ ᴏʜᴍɪᴄ ᴍᴀᴛᴇʀɪᴀʟ ɪs ᴀ sᴛʀᴀɪɢʜᴛ ʟɪɴᴇ ᴘᴀssɪɴɢ ᴛʜʀᴏᴜɢʜ ᴏʀɪɢɪɴ. ᴇ.ɢ. ʀᴇsɪsᴛᴏʀ ᴍᴀᴅᴇ ᴏғ ᴍᴀʀɢᴀʀɪɴᴇ.

(ɪɪ) ᴠ-ɪ ɢʀᴀᴘʜ ғᴏʀ ɴᴏɴ ᴏʜᴍɪᴄ ᴍᴀᴛᴇʀɪᴀʟ ɪs ᴀ sᴛʀᴀɪɢʜᴛ ᴀʀᴇ ɴᴏɴ - ʟɪɴᴇᴀʀ ᴄᴜʀᴠᴇ, ɴᴏᴛ ᴘᴀssɪɴɢ ᴛʜʀᴏᴜɢʜ ᴏʀɪɢɪɴ ᴇ.ɢ. ᴊᴜɴᴄᴛɪᴏɴ ᴄʜɪᴅᴇ ᴏʀ ᴇʟᴇᴄᴛʀᴏʟʏᴛᴇ

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