Recent content by vord_ler

Now everything is clear, thank you! Let me finally clarify it: when the direction and value of the current is defined, and we are applying KVL, we omit the direction and take the given value of the current.

Yes, It's clear that we should add 60V because we are going from - to + across 15 ohm resistor, but the fact that the 4 A current is flowing in the opposite direction of our traverse but we still DO NOT change its sign to -4A (as we usually do in order to specify that the current flows in...

Thank you for you representation, but why there is 30 V increase across 5 ohm resistor, if we are going from the higher to lower voltage?

I see now. Still it's strange for me why the 4 A current doesn't change its sign, since its original direction(with + sign) was counterclockwise, while we are traversing the loop in the clockwise direction.

But why it's + 60V? I traverse in clockwise direction and there is a voltage increase across the 15 ohm resistor, but the direction of the 4 A current is counterclockwise, which means we finally get (-4) * 15 = -60 V, why don't we?

I wrote exactly like that and got: 100 + 30 - 60 = 70 V, while the answer in the book is 190 V.

Can you please provide more details on what is exactly problematic in my solution, please?

I am sorry, but I still cannot understand where is the mistake in my solution. Can you please provide more details or maybe send your own solution using loop rule here?

I am sorry to distrupt you again, but can you please tell, why the solution to find Vg (the solution I provided belong) is incorrect? I compared my answer to the answer given in the book, and the answer in the book is 190V (the solution in the book is quite different from mine and doesn't really...

Oh finally I got the correct answer, thank you! Actually, there was no problem with the current directions (as you said, it doesn't matter) but the problem was with the voltage signs across resistors, I messed them up. This time, I just set the 5 ohm resistor from + - (voltage drop) and other...

Thank you for your answer. I would like to know at leats how to set up the currents direction properly, so I can continue analyzing the circuit. Could you please provide some algorithm maybe that can help me to set the direction of currents, or any resources that contain that info. Appreciate...