# Potential Difference between two points in battery

more so help with the concept than anything else.

A battery has an EMP of 12v and an internal resistance of 2 ohms. Is the terminal-to-terminal potential difference greater than, less than, or equal to 12v if the current in the battery is from a) from the neg to pos. terminal b) from pos to neg terminal c) zero?

I realize that you loose potential in going from a neg. to pos. terminal.
so for:
a) +E -iR = 0
b) -E + iR = 0
c) they are equal.

im just a little foggy on why b is greater than 12V.

OlderDan
Homework Helper
mb85 said:
more so help with the concept than anything else.

A battery has an EMP of 12v and an internal resistance of 2 ohms. Is the terminal-to-terminal potential difference greater than, less than, or equal to 12v if the current in the battery is from a) from the neg to pos. terminal b) from pos to neg terminal c) zero?

I realize that you loose potential in going from a neg. to pos. terminal.
so for:
a) +E -iR = 0
b) -E + iR = 0
c) they are equal.

im just a little foggy on why b is greater than 12V.