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 123 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?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Pneumonia. This common lung inflammation may be caused by bacteria, viruses, or fungi and is often d Pneumonia. This common lung inflammation may be caused by bacteria, viruses, or fungi and is often d
Cross Section of a Synapse Cross Section of a Synapse
Hormones acting through the brain help regulate metabolism and short- and long-term appetite. Hormones acting through the brain help regulate metabolism and short- and long-term appetite.
Record the AC frequency as shown on the meter and subtract 50 from the reading (e.g., 60.50 -50.00 = ... Record the AC frequency as shown on the meter and subtract 50 from the reading (e.g., 60.50 -50.00 = ...
Find the lateral area, total surface area, and volume of the frustum Find the lateral area, total surface area, and volume of the frustum
A flat circular coil having 57 turns of very thin wire has a diameter of 9.5 cm and carries 7.2 ... A flat circular coil having 57 turns of very thin wire has a diameter of 9.5 cm and carries 7.2 ...
Video: Stroke volume - contractility definition

For a complete list of videos, visit our video library