0
Resistance of wire is measured in Ohms (Ω) and depends on these factors.
The length of wire in feet.
The cross sectional diameter of the wire (circular mils).
The type of metal the wire is composed of (K). Most wire is composed of Copper or Aluminum
Here is the Specific Resistances (K) of these metals.
Copper - 10.8 Aluminum - 17.0
We can then use the formula...
R=K*L/Circular mils
"L" being the length of wire in feet
The above answer is correct if you are looking for voltage drop over a conductor length. When you bring coax cable into the equation, you are not looking for the wire ampacity for service distribution. If for some reason you are not familiar with coax cable, it is used for RF transmission. The only concern is the impedance match of the cable to whatever it is connected to, like a transmitter or antenna. A mismatch at the ends is detrimental because it causes a reflection of a portion of the energy. The greater the mismatch, the greater the reflected power. On my ham antennas I use RG8U. It is a coaxial cable with 52 ohm impedance For a good chart, see related links.
Answer: without a load is infinite. The coax when connected will definitely change impedance as frequency and lenght of cable are varied. At some frequency and lenght it can be zero impedance. All cables are designed for some impedance at a specific frequency and lenggt.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Which type of transmission line will have max value of characteristic impedence?
coaxial cable
What is the Speed of Coaxial Cable?
The speed of the coaxial cable is usually between 10 and 100 Mbps. The coaxial cable consists of a hollow outer cylindrical conductor that surrounds a single inner wire that is made of two conducting elements.
Why do you use waveguide instead of coaxial?
Coaxial cable is an electrical cable consisting of a round conducting wire, surrounded by an insulating spacer, surrounded by a cylindrical conducting sheath, and usually surrounded by a final insulating layer.waveguide may refer to any linear structure that conveys electromagnetic waves between its endpoints.
What type of cable consists of a single copper wire surrounded by at least three layers an insulating material and woven or braided metal and a plastic outer coating?
The description if that of "coaxial cable".
Can fiber optic cable be connected to a coaxial cable?
a basic cable system works as follows information is received via satellite from the information providers also known as a channel in what is known as a head end where they process the signal and insert it into qualms which leave the head end on fiber optic cable by laser till it gets to the neighborhood or neighborhoods where there are subscribers. the fiber optics then hit what is called a node. at the node a fiber optical receiver changes it from light into db which is then sent out on distribution style coaxial cable usually a plastic based coating quantum reach style cable or qr cable. it then hits an amplifier where it is jumped up to about 40 db give or take as it travels down the street. where there is a house there is a tap in the qr cable, which is where the coaxial cable people are most familiar with starts
What is 75 ohm?
Ohms are a measure of resistance to electric current.You're probably talking about a 75 ohm coaxial cable. In this case, 75 ohms is the characteristic impedance of the cable.
What is use coaxial cable?
Uses of Coaxial Cable?
What is slower coaxial cable or optical cable?
Coaxial one.
The center of a coaxial cable is called what?
the center of coaxial cable drrrrrrrrrreinstein
How many wires are in coaxial cable?
how many wires does a coaxial cable have
Attenuation of coaxial cable?
It is the loss of data from the coaxial cable during transmission .
What is coaxial cable also called?
STP is also called coaxial cable
Coaxial cable is balanced or unbalanced?
coaxial cable is unbalanced transmission line
What type of cable is an cable modem used for?
You should use an RG-6 cable RG-6 A type of coaxial cable with an impedance of 75 ohms and that contains an 18 AWG core conductor. RG-6 is used for television, satellite, and broadband cable connections. Source = Network+ Guide to Networks (Fifth Edition) by Tamara Dean
What is Applications of coaxial cable?
co-axial cable is used in tv and sattelite aerial communication also in cctv communication normally 50 ohms or 75 ohms impedence and normally terminated into BNC (BRITISH NAVAL COMMUNICATION) male and female conectors a crimping tool is used to do this job
What cables carry the signal from a cable modem to a PC is it a RCA cable HDMI ethernet or coaxial?
coaxial
Difference between coaxial cable and STP cable used for computer networking?
Difference between coaxial cable and STP cable used for computer networking?
