Recent content by LouisL

Thank you! I will heed your advice! I actually do not know a good source to learn about electomagnetism. If you know a good source or website that is good at explaining electromagnetism to beginners, I would appreciate you sharing that with me. Thanks again.

Thank you! I will be thinking about this. Regarding your statement: it is best to ignore the existence of electrons entirely. They have nothing to contribute to a model of electricity or current. But since all students insist on thinking about electrons in spite of this fact... This makes...

Thank you! I will be thinking about this.

Preface: I am new to physics and am trying to learn on my own, though I hope to take a class soon. I looked for a forum for beginners but didn't see one, but this seemed to be the closest forum. So I hope I can get some help with my question here. If it is the wrong forum, feel free to...

Thanks everyone for your answers. I obviously have a lot of studying to do. I will revisit this post after I get a better grip on the subject.

Homework Statement:: I am studying on my own, so I don't have a specific homework statement, but want to make sure I am thinking about things correctly. What I am wondering is if you have equivalent wires, let's say both are made of copper, and one wire has three times the voltage of the...

Details of Question: ds/dt= v which becomes ds=v dt, where s=displacement, t =time, and v=velocity Then we can integrate both sides of this equation, and do a little algebra, and turn the above equation into: s − s0 = v0t + ½at2 My main question is about the integration of...

I searched Wikipedia for the above concepts, but it was too technical for me. I just want to know something very basic: What exactly does a voltmeter measure to determine the voltage in a circuit? I don't think it measures the current flow, because that would be amperage. It must measure...

I am trying to get a better intuitive understanding of voltage and how it is measured. Here is my understanding: Voltage shows the potential difference between 2 points in a circuit and a higher voltage correlates with a higher electromotive force (emf) that moves the electrons through the...

Lets assume we have a 1 foot square bar of Iron. I realize that unpaired valence shell electrons in an atom of a substance like Iron, all with the same electron spin---either +1/2 or -1/2---are consistent within the same atom, as indicated from the aufbau principle and experiments. So for an...

Thank you, Merlin3189, that was very helpful!

Thank you ZapperT and mjc23 for your help. mjc23 has an explanation that I understand a bit easier. Let me reply to some quotes and see if I can get even more insight. Great point; however, if you have copper wire transmitting the current, as opposed to let's say, aluminum wire, but have...

I am trying to gain a very basic understanding of voltage. I understand amps and resistance, but not voltage. I am thinking of a copper wire that is used in a basic electrical circuit to light a light bulb. Is the voltage of this wire an inherent property of copper at a given temperature...