- #1

Eman 5

## Homework Statement

I want to know the voltage between a and b in the drawing below.[/B]

## Homework Equations

V= IR

## The Attempt at a Solution

The resistors 5Ω and 5Ω are in series:

(Req)1= 5+5=10Ω

The resistors (Req)1, 5Ω and 10Ω are in parallel:

1/(Req)2= 1/10+1/5+1/10=2/5

(Req)2=2.5Ω

The resistors (Req)2 and 2.5Ω are in series:

Rt=2.5+2.5=5Ω

I=V/Rt=15/5=3A

The voltage between a and b= IR

I have I but I don't know how to get R between the two points.