The discussion focuses on calculating the equivalent resistance in a specific circuit configuration. The user initially attempted to calculate the equivalent resistance using the formula for parallel resistors but incorrectly excluded the 8 and 4 ohm resistors. A correct approach involves recognizing that the 30 ohm and 60 ohm resistors are in series, yielding an R1 of 90 ohms, while the 40 ohm and 10 ohm resistors also combine in series to give an R2 of 50 ohms. The final equivalent resistance can be calculated using the formula R_{eq} = (R1 * R2) / (R1 + R2).
PREREQUISITESStudents studying electrical engineering, hobbyists building circuits, and anyone needing to calculate equivalent resistance in complex circuit configurations.
rootX said:Homework Statement
Find equivalent resistance in:
http://img135.imageshack.us/img135/585/62083770ay3.jpg
Homework Equations
The Attempt at a Solution
my
r_eq^-1 = (30+60)^-1+(40+10)^-1
this is wrong.
do i need to include 8 and 4 ohm resistors