This topic contains a solution. Click here to go to the answer

Author Question: A copper ring can be made to levitate about the extended bar of an electromagnet because the ... (Read 173 times)

SAVANNAHHOOPER23

  • Hero Member
  • *****
  • Posts: 542
A copper ring can be made to levitate about the extended bar of an electromagnet because the magnetic field induced in the ring
 
  A) remains strong and steady.
  B) opposes the field producing it.
  C) is attracted to the top end of the bar.
  D) none of the above

Question 2

The amount of current produced by electromagnetic induction depends on the
 
  A) amount of induced voltage.
  B) resistance of the circuit to which it is connected.
  C) both of these
  D) none of the above



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

LP

  • Sr. Member
  • ****
  • Posts: 302
Answer to Question 1

Answer: B

Answer to Question 2

Answer: C





 

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

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?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

For a complete list of videos, visit our video library