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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.
What else can I help you with?
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.
How much is1.5 sqmm per unit resistance of a cable?
The resistance of a 1.5 sqmm cable depends on its material (usually copper or aluminum) and its length. For copper, the typical resistance is about 12.1 ohms per kilometer, while for aluminum, it’s around 19.5 ohms per kilometer. To find the resistance per unit length, you would divide these values by 1000 to get ohms per meter. Thus, the resistance of a 1.5 sqmm copper cable is approximately 0.0121 ohms/meter.
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".
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 .
Coaxial cable is balanced or unbalanced?
coaxial cable is unbalanced transmission line
What is coaxial cable also called?
STP is also called coaxial cable
What type of coaxial cable do you need for digital aerial to a TV set?
For connecting a digital aerial to a TV set, you typically need a coaxial cable with an impedance of 75 ohms, which is the standard for most television signals. RG-6 coaxial cable is commonly used for this purpose due to its excellent signal quality and resistance to interference. Ensure that the cable is of good quality and properly terminated with F-type connectors for optimal performance.
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
