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

Author Question: A very long solenoid has 1.0 106 turns per meter and a cross-sectional area of 2.0 106 m2. A ... (Read 109 times)

jon_i

  • Hero Member
  • *****
  • Posts: 549
on: Jul 27, 2018
A very long solenoid has 1.0  106 turns per meter and a cross-sectional area of 2.0  106 m2. A short, secondary coil with 1.0  103 turns is wound over the solenoid's midpoint.
 
  What emf is induced in the secondary coil if the current in the solenoid is changing at a rate of 4.0 A/s? A) 1.0 V
  B) 2.7 V
  C) 1.6 V
  D) 0.52 V
  E) 4.4 V

Question 2

What POWER lens placed next to a lens of 25. cm focal length would produce a combination with an effective INFINITE focal length?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

samiel-sayed

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

-4.0 Diopters


jon_i

  • Hero Member
  • *****
  • Posts: 549
Reply #2 on: Jul 27, 2018
Thank you!


samiel-sayed

  • Sr. Member
  • ****
  • Posts: 337
Reply #3 on: Jul 27, 2018
Always glad to help...


« previous next »
 

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

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?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

A goanna at Grey Gum picnic area at Mount Coot-tha, Queensland, Australia A goanna at Grey Gum picnic area at Mount Coot-tha, Queensland, Australia
A pleasant smile can go a long way, even through telephone lines. A pleasant smile can go a long way, even through telephone lines.
When young infants hold objects for a long period of time they eventually become habituated to them. When young infants hold objects for a long period of time they eventually become habituated to them.
A solenoid has an area of 41.0 cm2. Find the change in magnetic flux through the solenoid. A solenoid has an area of 41.0 cm2. Find the change in magnetic flux through the solenoid.
When a 2.75-kg fan, having blades 18.5 cm long, is turned off, its angular speed decreases ... When a 2.75-kg fan, having blades 18.5 cm long, is turned off, its angular speed decreases ...
Progeny Vs Cross Progeny Vs Cross
Video: The Lagging Strand in DNA Replication and Replication in Action

For a complete list of videos, visit our video library