- #1

Castello

- 10

- 1

## Homework Statement

Find the Thevenin equivalent at terminals a-b

V1 = 70V

V2 (dependent) = 4Vo

R1 = 10Kohm

R2 = 20Kohm

## Homework Equations

##V=RI##

##1/req = 1/r1 + 1/r2 + ... +1/rn##

## The Attempt at a Solution

Found the current i = 1mA by KVL using Vo = 10ki then did source transformation for both tension sources: 7mA and 2mA, parallel with 10kohm and 20Kohm respectively. Then, calculated the equivalent resistor (20/3)kohm and subtracted the 7mA by the 2mA current sources. Transforming again, It gives me Vth = 33,3V and Rth = 6,6kohm but the answer is 60V and 2.9kohm.

I've tried many times this exercise with source transformation (as some others), had different results, and sometimes looks like that the source transformation doesn't work so generally that i thought (or I'm applying it in a wrong way).