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

Author Question: A copper ring can be made to levitate about the extended bar of an electromagnet because the ... (Read 139 times)

SAVANNAHHOOPER23

  • Hero Member
  • *****
  • Posts: 542
on: Jul 29, 2018
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
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: C


SAVANNAHHOOPER23

  • Hero Member
  • *****
  • Posts: 542
Reply #2 on: Jul 29, 2018
Thanks


LP

  • Sr. Member
  • ****
  • Posts: 302
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

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

A purse made from a cane toad. A purse made from a cane toad.
Banding of an esophageal varix; A, varix; B, insertion of tube with O-ring; C, O-ring is placed arou Banding of an esophageal varix; A, varix; B, insertion of tube with O-ring; C, O-ring is placed arou
Cystostomy. An artificial opening is made through the urinary bladder wall during this procedure. As Cystostomy. An artificial opening is made through the urinary bladder wall during this procedure. As
Steroid ring structure Steroid ring structure
How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C
A lesion called a plaque in the brain of an individual with Alzheimer disease. A ring of degeneratin A lesion called a plaque in the brain of an individual with Alzheimer disease. A ring of degeneratin
Video: Introduction to Sleep Apnea

For a complete list of videos, visit our video library