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  1. P

    What exactly is voltage and current?

    Got me Mrg3013. Ask Galvanicklucifer
  2. P

    What exactly is voltage and current?

    Leave it to Tesla to weigh in when the subject touches on electromagnetics
  3. P

    What exactly is voltage and current?

    But in your case, it would be pocket bowling. Impressive
  4. P

    What exactly is voltage and current?

    Admirable curiosity, Bimmerboy Now, what exactly are Maxwell's equations and how can you use them to derive Schrodenger's wave equation?
  5. P

    What exactly is voltage and current?

    OK Bimmerboy, anybody using the "right hand rule" is way beyond bowling ball analogies.
  6. P

    What exactly is voltage and current?

    I'm thinking that your bowling ball analogy might work better like this: The potential energy of the ball on the high shelf is more like the total power delivering capacity of a battery. It's amp-hour rating would be sorta like the height of the shelf. Voltage would be the force of gravity...
  7. P

    What exactly is voltage and current?

    Oh, and being hot is only one of the ways things generate electromagnetic radiation (called blackbody radiation). Synchrotron radiation is a much more powerful mechanism seen in broadband radiation viewed by radio astronomers when they look at the universe, for example. Coherent radiation(single...
  8. P

    What exactly is voltage and current?

    All of the equations you're seeing are just different ways of stating Ohms Law which is that current (I)= voltage (E, or in the above V) divided by resistance (R) , I=V/R or I=E/R depending on what naming convention you're comfortable with for voltage. So the more voltage or pressure with a...
  9. P

    Running a UPS under a car battery...

    Way cool I almost wish my power were less reliable so I could get neat stuff.
  10. P

    Running a UPS under a car battery...

    [ QUOTE ] Turbodog said: Watch out for the larger units. Most of them are 24v or even 48v input. The apc smart ups 1000 is 12v input, and maybe the 1400 also. Some of the 1400s were 12v and some were 24v. [/ QUOTE ] He's right, the Minuteman XRT UPS runs off of 48V d.c. You'd have to put...
  11. P

    Running a UPS under a car battery...

    I'm using the Minuteman XRT series UPS. I bought a refurbished one since they cost a mint new. It'll power 1500 Watts or so for as long as the batteries last and that's just up to the size of your pocketbook since you can add as many batteries as you want. True sine wave output, huge isolation...

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