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 59 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?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

The human body produces and destroys 15 million blood cells every second.

For a complete list of videos, visit our video library