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

Author Question: A long solenoid (1500 turns/m) carries a current of 20 mA and has an inside diameter of 4.0 cm. A ... (Read 178 times)

moongchi

  • Hero Member
  • *****
  • Posts: 516
on: Jul 28, 2018
A long solenoid (1500 turns/m) carries a current of 20 mA and has an inside diameter of 4.0 cm. A long wire carries a current of 2.0 A along the axis of the solenoid. What is the magnitude of the magnetic field at a point that is inside the solenoid and 1.0 cm from the wire?
 a. 78 T
  b. 55 T
  c. 48 T
  d. 68 T
  e. 2.0 T

Question 2

Determine the distance to Proxima Centauri in light-years, if it is 1.3 pc away.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jxjsniuniu

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

d(ly) = 1.3 pc  3.26 ly/1 pc = 4.3 ly


moongchi

  • Hero Member
  • *****
  • Posts: 516
Reply #2 on: Jul 28, 2018
Thank you!


jxjsniuniu

  • Sr. Member
  • ****
  • Posts: 343
Reply #3 on: Jul 28, 2018
Always glad to help...


« previous next »
 

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

stereocilia inside the ear stereocilia inside the ear
How long does it take you to see the circles? How long does it take you to see the circles?
To reverse the direction of operation, the polarity of the current through the motor is reversed. To reverse the direction of operation, the polarity of the current through the motor is reversed.
Long Term Control Medications Long Term Control Medications
How long does exercise affect blood sugar? How long does exercise affect blood sugar?
An endoscopic view of the colon of someone who carries the normal alleles for the APC gene An endoscopic view of the colon of someone who carries the normal alleles for the APC gene
Video: Mechanism of enzyme action

For a complete list of videos, visit our video library