Author Question: The core of a long solenoid with 1000 turns/m and a current of 0. 5 A is filled with an unknown ... (Read 49 times)

gbarreiro

  • Hero Member
  • *****
  • Posts: 566
The core of a long solenoid with 1000 turns/m and a current of 0. 5 A is filled with an unknown material. It is found that the magnetic field along the axis of the solenoid increases by 0.0017.
 
  What is the magnetic susceptibility of the unknown material? A)
 
  1.7  10-5
  B)
 
  3.4  10-5
  C)
 
  0.0048
  D)
 
  -3.4  10-5
  E)
 
  0.0021

Question 2

A semicircular wire of radius R connects two straight wire segments. If a current I flows along the wire, the magnitude of the magnetic field at the center of the semicircular wire due to the current in the semicircular wire is
 
  A)
 
  O I/2R.
  B)
 
  O I/4R.
  C)
 
  O I/8R.
  D)
 
  O I/4R.
  E)
 
  O I/8R.



mochi09

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

A

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

For a complete list of videos, visit our video library