Chris
posted this
22 April 2017
- Last edited 22 April 2017
Hi Cd_Sharp - Yes Right - Voltage is only a Potential Difference, it is the Potential for Current to Flow and is necessary for the Current Flow, but...
For Time Changing Electromagnetic Energy, we can have Voltage Potential with no Current and we can have Current with no Voltage Potential, its just phasing.
However, on the Terminals of an Electromagnetic "Generator" we can have a Voltage Potential Difference and not ever have a Current Flow, E.G: The Switch is Open and no Current can Flow.
In saying this we can not have it the other way around! As far as I know, there exist's nothing in Nature where we can have a Current Flow and No Potential Difference, or Voltage, a Voltage or Potential Difference is Necessary for a Current to Flow.
A Current Flow is the Magnetic Field, they are one and the same things!
So by working with the Current Wave Forms we can better visualise the Magnetic Fields in our Devices!
For it is the Current, and the Work that Current does, but not in the Form of Current, in the Form of Magnetic Fields, remembering that the Current and the Magnetic Fields have a 90 Degree Shift in the Electromagnetic Spectrum, that does the Work on the Charges in the Wire, Separating more Charges as More Current Flows:
The Electric Field is often thought of as a Voltage, however its not, it is Current Directly as pointed out! Current and the the Magnetic Field are in Phase (Mostly) in Time, but Orthogonal in Space! Or 90 Degrees out of Alignment in the Cartesian Plane.