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  1. What exactly is voltage? - Electrical Engineering Stack Exchange

    The total voltage you get from one out and back, even with a high temperature difference is pretty small. By putting many of these out and back combinations together, you can get a useful …

  2. How are current and voltage related to torque and speed of a …

    Sep 3, 2012 · Voltage instead "regulates" how fast a motor can run: the maximum speed a motor can reach is the speed at which the motor generates a voltage (named "Counter-electromotive …

  3. How much voltage/current is "dangerous"? - Electrical Engineering …

    Likewise, if the current and voltage are below a certain level, a person can--given enough time--safely absorb an arbitrarily large amount of electrical energy. Further, if voltage is sufficiently …

  4. Voltage drop across a single resistor and across two resistors

    Jul 20, 2020 · An intuitive way to look at is that all the voltage is dropped across two resistors, and since the resistors are the same, the voltage drop across each will be the same, each taking half.

  5. How to calculate voltage drop over and power loss in wires

    How do I calculate the voltage drop over wires given a supply voltage and a current? How do I anticipate on voltage drop so that the final load has the correct supply voltage? What will be …

  6. Transformer voltage regulation - Electrical Engineering Stack …

    Feb 11, 2022 · I usually would see a transformer with 30% regulation as "crappy" (unless it is a neon sign transformer) and one with 5% regulation as "decent." But this is just the no-load …

  7. Ohm's Law confusion -- can there be voltage without current?

    Apr 24, 2015 · 0 Ohm's Law confusion — can there be voltage without current? Yes. The wall outlet has voltage all the time, but current only flows if the circuit is closed with something that …

  8. Input voltage for feedback pin on LM2596 Voltage regulator

    Oct 9, 2015 · The voltage at the feedback pin is typically 1.23 volts but can be as low as 1.18 volts or as high as 1.28 volts (see top of page 4 of the data sheet). Somewhere in that small range …

  9. What is "forward" and "reverse" voltage when working with diodes?

    Mar 3, 2011 · The reverse voltage is the voltage drop across the diode if the voltage at the cathode is more positive than the voltage at the anode (if you connect + to the cathode). This …

  10. voltage - Live vs. Neutral wires - Electrical Engineering Stack …

    Feb 9, 2025 · Voltage of "local ground" The absolute charge on local ground is not actually a thing. Voltage is only ever defined as a difference between two points, so there is no such …