# Recent content by Luke0034

1. ### Voltage across two different circuits

So if I'm understanding correctly, does this mean that according to Ohm's Law, the amount current flowing in a circuit will always change to a quantity that coincides with the potential dropping to zero after the last resistor in the circuit?
2. ### Voltage across two different circuits

I guess what I'm not understanding about this analogy and my big question in general is why the voltage drops all the way to zero after the last resistor. So let's just use your water analogy. The voltage starts out in a pipe and travels through a resistor (pipe with smaller radius), so...
3. ### Voltage across two different circuits

I have a question regarding the voltage of two different circuits. In the first circuit there is a 75 volt battery with just one 4 ohm resistor. In a separate second circuit there is a 75 volt battery again, but this time there is a 4 ohm resistor and 9 ohm resistor in series. My question is...
4. ### Irrelevance of electrical potential

Can you explain what you mean by "add a constant to it." Maybe an example would help me understand what you're saying. Thanks.
5. ### Irrelevance of electrical potential

Thank you for the answer, I think I understand. So would I be correct to say that if the electrical potential at a certain point was 200 J/C, then that means that it would take 200 J of energy to move a 1 C charge from infinity to that point? But in terms of a circuit, the electrical potential...
6. ### Irrelevance of electrical potential

In regards to voltage and electrical potential, I have a question. I understand the voltage to be the difference in electrical potential of two separate points. So in an analogy am I correct to compare this to a bowling ball being 4 feet off the ground. So the bowling ball has a gravitational...

Thanks Sheldon, I freaking love you!
8. ### What is the voltage at the end of the circuit?

1. 15 V is what I think 2. 0 V is what I think. And this definitely isn't homework. I'll pulled a pic off google images and made these questions. I could care less about the value if the answer, I want to know the reasoning behind it. Is 1 and 2 correct and why?
9. ### Rise in Voltage across a battery

Let's say you have a circuit connected to a 15 volt battery. If current travels from the negative terminal of a 15 volt battery to the positive terminal, the voltage is said to rise 15 volts. I believe this is right, but correct me if I'm wrong. Assuming that is right, then does that mean that...

Thank you so much, and what would be the equivalent of resistors in series? What would be a capacitor in this analogy?
11. ### What is the voltage at the end of the circuit?

I have a some questions that will help me understand voltage better. 1. What is the voltage from the positive terminal to the negative terminal? Why? 2. What is the voltage from point 7 to point 8? Why? 3. Is the electric potential at the very end of the circuit (negative terminal) zero...