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The speed of light is approximately 3x10^8ms (exactly 299,792,458 m/s), but electric signals don't travel that fast in conductors. They travel anywhere from 40% up to 95% of that speed, depending on properties of the cable (the dielectric constant of the material surrounding the copper is a big factor).
Twisted pair copper cabling used in telephone wiring tends to be on the lower end, somewhere between 40% to 70%. So a good estimate is somewhere between 120,000,000 m/s to 210,000,000 m/s.
(The drift speed of electrons in a wire is much slower, on the order of millimeters per second. Electric signals travel through conductors as an electromagnetic wave.)
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoThe physical speed of the electric current or radio waves carrying telephone signals is about 186,000 miles per second, or 300,000 kilometers per second. Wire-carried signals will be slightly, but not significantly less, because of resistance.
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How does your voice go through a telephone wire?
it is first converted into an electric signal by your telephone, and then transmitted over the copper wire
Is a telephone wire copper?
no
What is telephone wire made of?
Copper
Who invented the telephone and copper wire?
dont know lego4699
What are telephone made of?
Mainly all telephone wires are made of copper with a plastic coating for insulation. Older form of telephone wire had a paper or pulp insulation over the copper wire. They are also a twisted pair cable.
What are telephone wires made of?
Mainly all telephone wires are made of copper with a plastic coating for insulation. Older form of telephone wire had a paper or pulp insulation over the copper wire. They are also a twisted pair cable.
What color is the wire of the speed signal for Chrysler town and country 2008?
There isn't a dedicated speedometer signal wire. The speed signal comes from the transmission computer and is sent on two way communication wires to the cluster.
What are the components of telecommunication?
signal source+Transmitter+medium(copper wire, coaxial cable, air)+receiver
Why optical fiber is slowly replacing copper cables in telecommunications?
Copper wire passes computer communications through the use of modulated carrier waves. RF energy is susceptible to resistance which reduces the signal over distance according to the Rho value of the copper wire. The longer the wire the higher the resistance the less signal is received at the other end. Secondly, being an RF signal, copper wire is susceptible to receiving signals from other sources which can cause interference though inter-modulation products caused by phase sum and difference between competing signals. Thirdly, RF signals are subject to standing waves which are caused by mismatches between feeders. This mismatch can prevent the signal from leaving the feeder (Copper wire) which in turn can prevent the signal from being received at the other end and cause the transmitter amplifier to become stressed and fail. Finally, copper wire is limited in the speed of the signal which can be transmitted. Fibre optical cable With multi-frequency fibre cables multiple signals can be sent down one cable at one time. Dependent on the purity for the fibre cable there is very little optical resistance runs of over 20km can be easily achieved. There is no transmission frequency limit to light. There is no standing wave problem. There is no interference problem from external sources. Fibre bundles carry more signals that the equivalent copper wire bundle in less physical space.
What is the compound formed after plunging a heated copper wire into a methanol?
It depends on what you added to the methanol before you put the heated copper wire into the methanol. The heated copper wire acted as a catalyst to speed up the reaction between the methanol and the other substance. Copper itself does not react with methanol.
What materials could block a wifi signal?
aluminum foil and copper wire--but how does it block a cell phone's connection??-_-
What are the elements in a copper wire?
If the copper wire really is pure copper then the only element in the copper wire is copper (Cu).
