This topic contains a solution. Click here to go to the answer

Author Question: A long wire is known to have a radius greater than 4.0 mm and to carry a current uniformly ... (Read 42 times)

darbym82

  • Hero Member
  • *****
  • Posts: 570
A long wire is known to have a radius greater than 4.0 mm and to carry a current uniformly distributed over its cross section. If the magnitude of the magnetic field is 0.285 mT at a point 4.0 mm from the axis of the wire and 0.200 mT at a point 10 mm from the axis, what is the radius of the wire?
 a. 4.6 mm
  b. 7.1 mm
  c. 5.3 mm
  d. 12 mm
  e. 10 mm

Question 2

A long, straight wire (radius = 2.0 mm) carries a current of 2.0 A distributed uniformly over a cross section perpendicular to the axis of the wire. What is the magnitude of the magnetic field at a distance of 1.0 mm from the axis of the wire?
 a. 0.40 mT
  b. 0.80 mT
  c. 0.10 mT
  d. 0.20 mT
  e. 0.75 mT



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

s.meritte

  • Sr. Member
  • ****
  • Posts: 306
Answer to Question 1

C

Answer to Question 2

C




darbym82

  • Member
  • Posts: 570
Reply 2 on: Jul 28, 2018
Excellent


cici

  • Member
  • Posts: 325
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

For a complete list of videos, visit our video library