This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Most telephone cables are made of copper wire of either 24 or 26 gauge. If the resistance of ... (Read 68 times)

waynest

  • Hero Member
  • *****
  • Posts: 553
on: Jul 28, 2018
Most telephone cables are made of copper wire of either 24 or 26 gauge. If the resistance of 24-gauge wire is 137 W/mile and the resistance of 26-gauge wire is 220 W/mile, what is the ratio of the diameter of 24-gauge wire to that of 26-gauge wire?
 a. 1.6
  b. 1.3
  c. 0.62
  d. 0.79
  e. 0.88

Question 2

A rod (length = 80 cm) with a rectangular cross section (1.5 mm  2.0 mm) has a resistance of 0.20 W. What is the resistivity of the material used to make the rod?
 a. 6.0  10-7 W  m
  b. 3.8  10-7 W  m
  c. 7.5  10-7 W  m
  d. 3.0  10-7 W  m
  e. 4.8  10-7 W  m


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

aloop

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

C


waynest

  • Member
  • Posts: 553
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

apple

  • Member
  • Posts: 352
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

An example of horizontal gene transfer: antibiotic resistance An example of horizontal gene transfer: antibiotic resistance
One danger of a wire fence is that, as shown in this photo, it is practically invisible; a running a One danger of a wire fence is that, as shown in this photo, it is practically invisible; a running a
Measuring the resistance of a spark plug wire with a multimeter set to the ohms position. The ... Measuring the resistance of a spark plug wire with a multimeter set to the ohms position. The ...
Foods made with fat substitutes aren’t calorie free Foods made with fat substitutes aren’t calorie free
The profit, p(t), made at a fair depends on the price of the ticket, t. The profit is modelled ... The profit, p(t), made at a fair depends on the price of the ticket, t. The profit is modelled ...
Video: Photosynthesis overview Animation

For a complete list of videos, visit our video library