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

Author Question: How much current must pass through a 400-turn ideal solenoid that is 4.0 cm long to generate a 1.0-T ... (Read 25 times)

lb_gilbert

  • Hero Member
  • *****
  • Posts: 588
on: Jul 29, 2018
How much current must pass through a 400-turn ideal solenoid that is 4.0 cm long to generate a 1.0-T magnetic field at the center? (0 = 4  10-7 T  m/A)
 
  A) 80 A B) 22 A C) 13 A D) 0.013 A E) 40 A

Question 2

A 400-W computer (including its monitor) is turned on for 8.0 hours per day. If electricity costs 10 per kWh, how much does it cost to run the computer annually for a 365-day year?
 
  A) 120
  B) 1200
  C) 15
  D) 150


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dajones82

  • Sr. Member
  • ****
  • Posts: 359
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

A


lb_gilbert

  • Member
  • Posts: 588
Reply 2 on: Jul 29, 2018
Gracias!

ghepp

  • Member
  • Posts: 361
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

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?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Overview of material uptake and long-distance transport processes in plants Overview of material uptake and long-distance transport processes in plants
Greenstick Only one side of the shaft is broken, and the other is bent (like a greenstick); usually Greenstick Only one side of the shaft is broken, and the other is bent (like a greenstick); usually
Solution (Polynomial Long Division) Solution (Polynomial Long Division)
fMRI Machine It is not until after toddlerhood that most children can lie still long enough to have fMRI Machine It is not until after toddlerhood that most children can lie still long enough to have
Current Geopolitics and Civil Liberties Current Geopolitics and Civil Liberties
A current-carrying wire is placed in a uniform magnetic field, as shown below. A current-carrying wire is placed in a uniform magnetic field, as shown below.
Video: Optic Nerve and Optic Disk Animation (Part 2 of 2)

For a complete list of videos, visit our video library