# Superposition Question, electric circuits

1. Oct 1, 2009

### string_656

1. The problem statement, all variables and given/known data

^^^^ = resistor = 10 ohm
<> = 3*Vab Dependent voltage. (the voltage equals 3 times Vab)
0 = voltage source 4 v (inderpendant)
o = Inderpendant Current source 2 A

|--^^^^---<>---------a +
| + + - |
0 o Vab
| - |
|-----------------------b -

Question asks, Find Vab (the voltage across a and b) using superposition

2. Relevant equations
Well theres lots, ohms, KCL, KVL etc,

3. The attempt at a solution
I want to attempt it, but i dont no how to break this down, as all the examples in the txt book dont have the dependant votlage source, and in the examples they are solving for a voltage across a resistor.

Any ideas? thanks
ps i also uploaded the image just incase the one above didnt work once posted

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2. Oct 1, 2009

### CEL

What is the current through the 10 ohm resistor?
What are the voltages at the two ends of this resistor?