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

Author Question: What is the resistance of 1 000 m of 4-mm diameter copper wire? (Cu = 1.7 10-8 / ... (Read 152 times)

future617RT

  • Hero Member
  • *****
  • Posts: 543
on: Jul 28, 2018
What is the resistance of 1 000 m of 4-mm diameter copper wire? (Cu = 1.7  10-8  / m)

Question 2

A high-resistance material is used as an insulator between the conductors of a length of coaxial cable. The resistance material, which forms a hollow tube, has an inner radius a and an outer radius b, and the insulator provides a resistance R between the conductors. If a second insulator, made of the same material and having the same length, is made with double both the inner radius and the outer radius of the first, what resistance would it provide between the conductors?
 a. R
  b. 2 R
  c. 4 R
  d. (ln2)R
  e. R/(ln2)


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Joc

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 28, 2018
Answer to Question 1

1.35 ohm

Answer to Question 2

a


future617RT

  • Hero Member
  • *****
  • Posts: 543
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


Joc

  • Sr. Member
  • ****
  • Posts: 317
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Typical engine analyzer hookup that includes a scope display. (1) Coil wire on top of the ... Typical engine analyzer hookup that includes a scope display. (1) Coil wire on top of the ...
Measuring the resistance of the ECT sensor. The resistance measurement can then be compared with ... Measuring the resistance of the ECT sensor. The resistance measurement can then be compared with ...
Two modes of gene amplification leading to drug resistance Two modes of gene amplification leading to drug resistance
Strawberries contain iron, copper, magnesium, phosphorus, vitamin B6, vitamin K and vitamin E Strawberries contain iron, copper, magnesium, phosphorus, vitamin B6, vitamin K and vitamin E
In another solar system, a planet has an airless moon Zygo that is 4.0 × 105 m in diameter. ... In another solar system, a planet has an airless moon Zygo that is 4.0 × 105 m in diameter. ...
The diameter of a semicircle is 4 miles. What is the semicircle's area? The diameter of a semicircle is 4 miles. What is the semicircle's area?
Video: Endocytosis - pinocytosis, receptor mediated and Transcytosis

For a complete list of videos, visit our video library