Question

Define potential difference between two points in an electric circuit​

Answer 1

Answer:

ᴘᴏᴛᴇɴᴛɪᴀʟ ᴅɪғғᴇʀᴇɴᴄᴇ ɪs ᴛʜᴇ ᴅɪғғᴇʀᴇɴᴄᴇ ɪɴ ᴛʜᴇ ᴀᴍᴏᴜɴᴛ ᴏғ ᴇɴᴇʀɢʏ ᴛʜᴀᴛ ᴄʜᴀʀɢᴇ ᴄᴀʀʀɪᴇʀs ʜᴀᴠᴇ ʙᴇᴛᴡᴇᴇɴ ᴛᴡᴏ ᴘᴏɪɴᴛs ɪɴ ᴀ ᴄɪʀᴄᴜɪᴛ. ᴛʜᴇ ᴇɴᴇʀɢʏ ɪs ᴛʀᴀɴsғᴇʀʀᴇᴅ ᴛᴏ ᴛʜᴇ ᴇʟᴇᴄᴛʀɪᴄᴀʟ ᴄᴏᴍᴘᴏɴᴇɴᴛs ɪɴ ᴀ ᴄɪʀᴄᴜɪᴛ ᴡʜᴇɴ ᴛʜᴇ ᴄʜᴀʀɢᴇ ᴄᴀʀʀɪᴇʀs ᴘᴀss ᴛʜʀᴏᴜɢʜ ᴛʜᴇᴍ. ᴡᴇ ᴜsᴇ ᴀ ᴠᴏʟᴛᴍᴇᴛᴇʀ ᴛᴏ ᴍᴇᴀsᴜʀᴇ ᴘᴏᴛᴇɴᴛɪᴀʟ ᴅɪғғᴇʀᴇɴᴄᴇ (ᴏʀ ᴠᴏʟᴛᴀɢᴇ).

Answer 2

The potential difference between two points in an electric circuit is defined as the amount of work done in moving a unit charge from one point to the other point. That is

$\small\bf\red{Potential \: \: difference} = \frac{ \large\bf\green{Work done}}{ \small \bf \blue{Quantity\: of\: charge \:moved}}$