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  1. 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 force") …

  2. Why did current increase when voltage decreased?

    Jan 6, 2024 · At a lower voltage, you need more current to provide the same power. So any device that is designed to provide the same power regardless of voltage will draw more current as the voltage …

  3. Why does a resistor reduce voltage if V=IR? [duplicate]

    According to Ohm's law, resistance varies directly with voltage You should read this the other way. Voltage varies directly with current. "R" is the constant of proportionality telling how much it varies. If …

  4. Can a current source have a voltage across it?

    Jan 6, 2016 · A current source can certainly have a voltage across it. If the voltage across a current source is zero, then it is not delivering or absorbing any power. However, if the voltage across the …

  5. 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 is usually much …

  6. 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.

  7. voltage - "Ground" vs. "Earth" vs. common vs. negative terminal ...

    Aug 4, 2014 · Voltage has exactly the same problem: one terminal can only "have a voltage" when compared to another terminal. Voltage acts like distance: voltage and distance are double-ended …

  8. Three phase power supply - what is line to line voltage

    Dec 4, 2013 · 2 Line to line voltage for a 3phase network (120deg separation) is sqrt (3)*phase voltage. So for a 230V 3ph network the line-line is 400V

  9. voltage - Is power proportional to V or V^2? - Electrical Engineering ...

    Jan 20, 2021 · Yes, because I is a function of V, as long as we're talking about resistors. Power is linearly proportional to voltage, though, if you're talking about a constant current device.

  10. How much voltage/current is "dangerous"?

    6 It's not the voltage but the current that kills, is a popular yet still incorrect incomplete answer. It is the ENERGY that kills. With static electricity you will will be exposed to voltages much, much, much …