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

Author Question: A high-voltage power line 20 m above the ground carries a current of 5000 A. What is the magnetic ... (Read 86 times)

iveyjurea

  • Hero Member
  • *****
  • Posts: 555
on: Jul 28, 2018
A high-voltage power line 20 m above the ground carries a current of 5000 A. What is the magnetic field due to the current directly underneath the power line? (0 = 4p  10-7 Tm/A)
 a. 14 mT
  c. 20 T
  b. 35 T
  d. 50 T

Question 2

If a long spring with spring constant k is cut into 3 equal lengths, what is the spring constant of each of the 3 shorter springs?
 a. It is still k.
  c. It is k/3.
  b. It is 3k.
  d. It is k/9.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jessofishing

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


iveyjurea

  • Member
  • Posts: 555
Reply 2 on: Jul 28, 2018
Gracias!

alvinum

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Durable power of attorney. Durable power of attorney.
A downward-sloping spark line usually indicates high secondary ignition system resistance or an ... A downward-sloping spark line usually indicates high secondary ignition system resistance or an ...
Two wells are filled with the same antigen, and when they diffuse to the antibody, they make a line ... Two wells are filled with the same antigen, and when they diffuse to the antibody, they make a line ...
Geothermal power Geothermal power
The power of English Language "&" and "and" The power of English Language "&" and "and"
Calculate the distance from point R(17,5) to the line ... Round to the nearest tenth of a Calculate the distance from point R(17,5) to the line ... Round to the nearest tenth of a
Video: Segmentation and migrating motility complexes & Gastroileal reflex

For a complete list of videos, visit our video library