Homework Statement
In the figure, what is the current in the wire above the junction?
Homework Equations
V=IR or I=V/R
The Attempt at a Solution
I am really confused as to what "above the junction" means. I tried to add the voltages and add the resistors and divide them to get...
Ok well that's where I'm having trouble at. How do I know which ones to add first for the resistors? What I mean is, do I add all the parallel first or all the series or does it not matter? The way I'm doing it now isn't yieldingthe right answer
Homework Statement
For the circuit in the figure, what is the current through the 2.0 ohm resistor?
Express your answer using two significant figures.
For the circuit in the figure, what is the power dissipated by the 20 ohm resistor?
Express your answer using two significant figures...