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 132 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?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

The Role of the Hippocampus and Cerebral Cortex in Long-Term Memory Storage The Role of the Hippocampus and Cerebral Cortex in Long-Term Memory Storage
Major trunk lines carrying long-distance traffic crisscrossed the area east of the Mississippi. The Major trunk lines carrying long-distance traffic crisscrossed the area east of the Mississippi. The
The opening of the throttle plate can be delayed as long as 30 milliseconds (0.030 sec) to allow ... The opening of the throttle plate can be delayed as long as 30 milliseconds (0.030 sec) to allow ...
Part of a Semantic Network in Long-Term Memory Part of a Semantic Network in Long-Term Memory
Summer squash exhibiting various fruit-shape phenotypes, including disc, long, and sphere Summer squash exhibiting various fruit-shape phenotypes, including disc, long, and sphere
Video: Acid-base imbalances - metabolic acidosis and alkalosis

For a complete list of videos, visit our video library