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Dec 26, 2019 at 10:07 comment added Álvaro Franz Dear Ofek, I unmarked the green tick because I am still not happy with my understanding of this case. It does not mean at all that I don't appreciate your help.
Dec 25, 2019 at 18:55 comment added Ofek Gillon Thanks! You too!
Dec 25, 2019 at 18:54 comment added Álvaro Franz There should be some sort of mix-accepted-answer because really... it happens a lot, that a few answers together are the most complete answer. Anyways... merry christmas.
Dec 25, 2019 at 18:53 comment added Ofek Gillon You're welcome, but I should thank uriyaba for his explanation also because he made most of the effort :)
Dec 25, 2019 at 18:52 comment added Álvaro Franz A million thanks.
Dec 25, 2019 at 18:51 comment added Ofek Gillon I used the fact that the current is the same everywhere using the current law (in every node the current doesn't go elsewhere)
Dec 25, 2019 at 18:51 vote accept Álvaro Franz
Dec 26, 2019 at 10:06
Dec 25, 2019 at 18:50 comment added Ofek Gillon The voltage across the loop will be $$10V - 13\Omega \cdot I - 7 \Omega \cdot I = 0 \Rightarrow 10 V = 20 \Omega \cdot I $$ $$ I = \frac{10 V}{20\Omega} = 0.5 \frac{V}{\Omega} = 0.5 A$$
Dec 25, 2019 at 18:49 comment added Álvaro Franz How does the Kirchhoff's law result in I being half an Ampere? (Sorry I am not making fun or anything, I really don't see it) I know Kirchhoff's law 1 and 2 but I do not see them applying here and resulting in half an Ampere current.
Dec 25, 2019 at 18:47 comment added Ofek Gillon I just applied Kirchhoff's law for the right circuit and got that the current needs to be half an ampere. So by defining the down-right corner to be "0 volts" I just continued using Ohm's law to figure out the voltage in each place in the circuit.
Dec 25, 2019 at 18:45 comment added Álvaro Franz For each resistor you drew a voltage of half it's resistance value because I = 0,5 A. Could you please explain where those values come from? Those number make it be this way but why is it not I = 0,2 and then there is some voltage in the blank cable too? Thanks a lot for taking your time.
Dec 25, 2019 at 18:37 history answered Ofek Gillon CC BY-SA 4.0