- #1

Biker

- 416

- 52

## Homework Statement

The following picture illustrate how the current in the circuit changes when you change ##E_2##. Where slope 1 represents the current flowing through ##E_1## and slope 2 represents the current flowing through ##E2##

## Homework Equations

Usual circuit laws :P

## The Attempt at a Solution

I think there is inconsistency in data.

It didn't give me the direction in current so I assumed the following.

If we look at the point where ##E_2## is equal to 5 ( 5 , 0.1). There is only one possibility of both current being upward so it can flow in R2

So we now know that the positive values must be upward.

and we can easily know R2

## R_2 = \frac{E_2}{0.2} = \frac{5}{0.2} = 25 ##

Now if we look at point 10. We find that the current flowing in ##E_2## is 0.4 and upward

The current in ##E_1## is -0.2 which means 0.2 downward. We conclude that the current in ##R_2## is 0.2

## R_2 = \frac{E_2}{0.2} = \frac{10}{0.2}= 50 ##

Here is the inconsistency.