- #1
johnpjust
- 22
- 0
Voltage without charge = current??
This would be better if drawn out, but hopefully everyone can use their imagination. Consider a DC voltage source between two wires on one end, and the other ends being open (unconnected leads). Both wires are the same length, and one lead can be considered "ground" or zero reference, and the other we'll call "high". There would be a certain amount of charge "stored" in the system based on the distance between the wires, and the length of the wires, etc.
NOW -- consider that directly between the charged leads (and in the same plane) but without touching them we place two wires of the same length at different distances from the wire we designated as reference voltage (as measured perpendicularly from the reference wire). Each of these wires would be at different voltages (higher than reference voltage, but lower than the "high" voltage wire). Now, if on each end of these unconnected wires, we put resistors that connect the wires together, would there be current flow due to the voltage differences of the two wires, even though neither of the wires is "charged"?
Obviously an EMF (inductance) can create a current flow without having a charge on the wire, but I'm trying to figure out if there is some sort of complimentary situation with voltages induced by electric fields instead of magnetic ones...
This would be better if drawn out, but hopefully everyone can use their imagination. Consider a DC voltage source between two wires on one end, and the other ends being open (unconnected leads). Both wires are the same length, and one lead can be considered "ground" or zero reference, and the other we'll call "high". There would be a certain amount of charge "stored" in the system based on the distance between the wires, and the length of the wires, etc.
NOW -- consider that directly between the charged leads (and in the same plane) but without touching them we place two wires of the same length at different distances from the wire we designated as reference voltage (as measured perpendicularly from the reference wire). Each of these wires would be at different voltages (higher than reference voltage, but lower than the "high" voltage wire). Now, if on each end of these unconnected wires, we put resistors that connect the wires together, would there be current flow due to the voltage differences of the two wires, even though neither of the wires is "charged"?
Obviously an EMF (inductance) can create a current flow without having a charge on the wire, but I'm trying to figure out if there is some sort of complimentary situation with voltages induced by electric fields instead of magnetic ones...