- #1

- 179

- 6

## Homework Statement

Find the Thevenin's equivalent with respect to points A and B

## Homework Equations

3. The Attempt at a Solution [/B]

The resistance i found to be

##R_t=(R_2+R_1)||R_3+R_4## and that is the correct expression but for the voltage source the book gives

##\frac{R_3}{R_1+R_2+R_3}*(V_1+V_2)-V_4##

I understand that the first part is a voltage divider but the second i dont get? Dont we have a voltage drop along ##R_4## as well? How could we ignore it and just subtract ##V_4##? Could you explain?