What *exactly* is electrical current, voltage, and resistance?
Apr 23, 2019 · The voltage tells us how much specific work (work per charge) is done, or can be done, on other charges when they move between the two locations which have differing …
What is the difference between electric potential, potential …
Mar 27, 2019 · Voltage is the difference in potential between two arbitrary points at which the potential is not necessarily zero. For example, the potential at point A relative to a defined …
Why is Power = Voltage $\times$ Current? - Physics Stack Exchange
Apr 25, 2022 · In circuits where the voltage-current product corresponds to power, this is a statement of conservation of power (i.e. power supplied is equal to power consumed), which is …
electromagnetism - What is Electromotive force (EMF)? How is it …
But the voltage across a charged capacitor cannot be called as an emf because the source is electric charges which is purely electrical. Here's a similar explaination from Wikipedia: In …
Why does more voltage mean more current? - Physics Stack …
Feb 18, 2018 · The voltage (potential difference) corresponds to the pressure difference between two points. A higher pressure in one spot means a larger "push" on the water. For charges in a …
Is voltage and electric potential actually the same thing? If not, …
Sep 24, 2021 · Voltage (and current), not electric potential, is the quantity in which Ohm’s law, the voltage-current relationship for inductors, capacitors, and diodes, are written. Voltage, not …
voltage - Names of fruits that can generate electricity - Physics …
The (maximum) voltage produced is much more dependent on what the metals are than on which fruit is used. Usually these fruit or vegetable batteries are not very useful. Their maximum …
Current without Voltage and Voltage without Current?
Voltage, in the most physical way, is a scalar field that determines the potential energy per unit charge at every point in space. Now, you can't have currents without voltages because if …
How can there be a voltage when there is no current?
Sep 4, 2014 · Large voltage at zero current! Blasphemy!!! So, if voltage isn't caused by current, what then causes voltage? Simple: electric charge causes voltage, since electric charge is …
Why does 0 resistance mean 0 voltage? - Physics Stack Exchange
Jun 4, 2018 · Voltage is a difference of electric potentials, not a difference of voltages. There is no "in" and "out" voltage, just a voltage between input and output. There is no "delta" in the Ohm's …