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  1. How do I explain current and voltage to a lay man?

    Mar 18, 2015 · Of course I replied him that current is the flow of electrons and in order for the current to flow there should be a potential difference between them. But the man didn't know …

  2. What is the difference in meaning of a voltage signal and current ...

    The relation between voltage, current, and the load is fixed by Ohms law: current = voltage / resistance. Consequently, when the load is unknown, the source can choose between 'fixing' …

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

    Related: Safe current/voltage limit for human contact? From what I've heard: 110 V (or 220 V; household voltage pretty much) is dangerous (i.e. can kill you) I think there's consensus on …

  4. Does LED brightness change with voltage?

    Sep 6, 2016 · It's the forward current that determines the brightness of an LED, not the voltage. In the case of an LED current vs luminous intensity is pretty linear, that is to say 2x the current 2x …

  5. Help understanding difference between current and voltage …

    Apr 18, 2023 · Help understanding difference between current and voltage transformers Ask Question Asked 2 years, 6 months ago Modified 2 years, 6 months ago

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

    Sep 3, 2012 · Voltage and current are the essential components of power a.k.a. the ability to perform work. To do work by means of spinning machinery requires a rotary-acting force - a …

  7. Current mode control vs Voltage mode control - Electrical …

    Oct 6, 2024 · I am confused about why we always make the outer (slower) loop a voltage control loop and the inner (faster) loop a current control loop in switched-mode power supplies? I read …

  8. DC electromagnet strength: voltage or current?

    Apr 10, 2017 · Is the strength of a DC electromagnet more determined by current or voltage? For example: if I had one battery at a fixed output that I could step up or down, would it be better to …

  9. Difference between current transformers and power transformers

    May 2, 2012 · To get power, you need both voltage and current, which means the transformer needs to be operated somehwere between short circuit output where there is no voltage and …

  10. Do solar panels generate variable current or variable voltage?

    May 19, 2017 · Many solar panels are watt-rated. The generated power depends on lighting conditions, so either the current and/or voltage is variable. Which one is it?