All Questions
8
questions
1
vote
2
answers
100
views
Is the speed of signal transport via electricity as fast as light? [duplicate]
Let us assume a time synchronization system that comprises a sender and a receiver. The sender generates and sends an encoded signal which presents the current time to the receiver periodically, and ...
- 111
9
votes
5
answers
4k
views
How does the speed of electricity become the same as the speed of light?
"The field due to the battery sets up a surface charge in the wire. The surface charge is negative near the negative pole of the battery, and positive near the positive terminal, and varies more ...
0
votes
1
answer
39
views
Speed of field and data in wire
The speed of field in wire is near the speed of light (speed of field not electron) so why speed of data is in MBPS, I mean why a byte dose not transport with light speed (field speed).
- 121
5
votes
1
answer
655
views
How are electric and magnetic fields able to travel through space and wires, and how are they more than mathematical constructs?
Once I was taught that light is physically made up of in-phase E and B fields oscillating perpendicularly, it was a little baffling because I always thought fields were just analysis tools (or even ...
0
votes
1
answer
5k
views
What is the speed of electricity in a vacuum? [duplicate]
I was looking up the difference of the speed of electricity versus the speed of light online and I found that the speed of electricity can approach (up to 90% of) the speed of light at 186,000 miles ...
3
votes
0
answers
77
views
Speed of a current passing through a wire [duplicate]
The wire is at 50hz, and is an aluminum alloy (AAAC 1120). Resistance in the wire is at 0.0897 ohm/km. So for a length of conductor 135km long, the resultant resistance will be 12.1095 ohm. It's AC ...
- 31
0
votes
0
answers
93
views
How does electricity travel near the speed of light if electrons drift at a snail pace? [duplicate]
I was in a reddit argument with someone who said electrons didn't flow at the speed of light in a circuit. Then he linked the Wikipedia page for drift velocity and defeated me in one fell swoop. Now, ...
- 133
45
votes
5
answers
61k
views
Speed of light vs speed of electricity
If I arranged an experiment where light raced electricity what would be the results? Let's say a red laser is fired at the same time a switch is closed that applies 110 volts to a 12 gauge loop of ...
- 4,711