Why does EVERYONE claim voltage is electrical pressure? - Physics …
WEBJul 15, 2005 · Wave propogation from antennae cannot be likened to pressure, because fields are involved. Also, voltage is both potential and rate of change. In the electric energy domain, it is potential, or "scalar electric potential". In the magnetic energy domain it is -N*d (phi)/dt, phi=flux.
Pressure on uniformly charge spherical shell - Physics Forums
WEBDec 19, 2009 · The pressure on a uniformly charged spherical shell is always greater than the pressure on a uniformly charged solid sphere of the same radius and charge. This is because the electric field is more concentrated on the surface of a spherical shell compared to a solid sphere, resulting in a higher pressure.
Why is my power washer's GFCI plug tripping and getting hot?
WEBOct 9, 2017 · A GFCI, or Ground Fault Circuit Interrupter, is a device that protects against electric shock by quickly shutting off power to a circuit when it detects a ground fault or imbalance in the electrical current. 2. Why is a GFCI important for a power washer? A power washer uses high pressure water and electricity, which can …
Are theses approaches correct? (entropy change of water turning …
WEBDec 14, 2018 · An insulated piston-cylinder device contains 5 L of saturated liquid water at a constant pressure of 150 kPa. An electric resistance heater inside the cylinder is now turned on, and 2200 kJ of energy is transferred to the steam. Determine the entropy change of the water during this process Homework Equations Steam tables
Is Voltage a measurement of pressure? - Physics Forums
WEBNov 3, 2019 · Summary: Volts. When measuring an electrical currents voltage, are you actually measuring the pressure emitted in electricity. Voltage between two points, A and B, in a circuit is a measure of the potential energy difference between a unit charge at A and a unit charge at B. Voltage has dimensions of energy/charge (units such as joules/coulomb).
Electronics: using water pressure & flow analogy to explain voltage ...
WEBAug 11, 2008 · Electronics / electrical engineering forums often get questions from novices who have trouble understanding the concepts of voltage and current. Invariably, a more knowledgeable person will explain it by giving the standard analogy between electricity and water: voltage <--> water pressure. current <--> water flow rate (eg. liters/sec of water)
How does a pressure reducing valve work? - Physics Forums
WEBJan 14, 2008 · Pressure Valve Work. In summary, the pressure reducing valve works by taking a pressure drop across it, which reduces the overall pressure in the system. This is accomplished by a spring and diaphragm, which are connected to a device that regulates the flow opening in the valve. The incoming pressure …
Electric Turbocharger Questions - Physics Forums
WEBJun 14, 2016 · Electric Turbocharger Questions. In summary, Finn thinks that he needs around 5 kW of power to push 1 lb/min at a pressure ratio between 1.25 and 1.75 in order to mimic the system that Audi/Valeo developed. He is looking into using an electric motor, gearbox, and turbocharger setup to do this.
What causes pressure drops in pressure vessels - Physics Forums
WEBNov 3, 2012 · In summary, the conversation is about understanding the theory and calculation of pressure drops in an electric heater pressure vessel, as related to pipes and flanges according to ASME B16.10, B16.47, B36.10. The individual is not a mechanical engineer, but is trying to create an intuitive data input sequence.
Is Harnessing Pressure for Energy Possible in the Near Future?
WEBOct 24, 2003 · Pressure can easily be converted into useful energy. This has not been a problem for some time now. To make it work, however, one must remember that the source of a pressure MUST propagate from a higher to a lower pressure environment in order to extract energy.(Think of hydroelectric dams, for instance)