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 191 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?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Average Hourly Earnings of U.S. Workers in Current and Constant Dollars Average Hourly Earnings of U.S. Workers in Current and Constant Dollars
The poverty of the Least Industrialized Nations carries over to their educational system. These ... The poverty of the Least Industrialized Nations carries over to their educational system. These ...
Homeschooling has come a long way. These children are performing in a musical at the annual ... Homeschooling has come a long way. These children are performing in a musical at the annual ...
What is the current flowing through the resistor? What is the current flowing through the resistor?
Composition of a long bone Composition of a long bone
Video: Simple Diffusion - gases and nonpolar compounds transport

For a complete list of videos, visit our video library