SOLUTION: Can someone help with this.
the resistance in a cable conducting electricity varies directly as the length of the cable and inversely as the square of the diameter of the cable
Algebra.Com
Question 1109083: Can someone help with this.
the resistance in a cable conducting electricity varies directly as the length of the cable and inversely as the square of the diameter of the cable. If a cable 8 feet long with a 1-inch diameter has a resistance of 8 ohms, what is the resistance in a cable 20 ft with a diamter of .5 inches
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
the resistance in a cable conducting electricity varies directly as the length of the cable and inversely as the square of the diameter of the cable. If a cable 8 feet long with a 1-inch diameter has a resistance of 8 ohms, what is the resistance in a cable 20 ft with a diameter of .5 inches
====
R = k*L/d^2
Solve for "k"::
8 = k*8/1^2
k = 64
-----
R = 64*L/d^2
-----
R = 64*20/(0.5)^2 = 64*20/(1/4) = 64*80 = 5120 ohms
-----------
Cheers,
Stan H.
----------
---
RELATED QUESTIONS
A radio tower which is 40 meters in langth is braced with a cable and is tied 9 meters... (answered by checkley77)
A support cable for a 64 foot tower forms a 70° angle with the ground. What is the length (answered by arunpaul)
4) The strength limit of a specific type of a cable is random variable with mean value of (answered by Boreal)
I am not good with word problems so can someone help?
The electrical resistance R of a (answered by 303795)
Can anyone help with a electricity question? The current (I) in an electrical conductor... (answered by ikleyn)
I need help setting up this problem, if I can figure out how to set it up I can solve it. (answered by stanbon)
The electrical resistance of a wire varies directly as its length and inversely as the... (answered by josmiceli,ankor@dixie-net.com)
The electrical resistance of a wire varies directly as its length and inversely as the... (answered by rfer)
The resistance of a wire to the transmission of electricity varies directly as the length (answered by stanbon)