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

Author Question: Superconductors can carry very large currents with no resistance. If a superconducting wire is ... (Read 48 times)

pepyto

  • Hero Member
  • *****
  • Posts: 547
on: Jul 28, 2018
Superconductors can carry very large currents with no resistance. If a superconducting wire is formed into a solenoid of length 50.0 cm with 250 turns, what is the magnetic field inside the solenoid when the current is 104 A? (0 = 4p  10-7 Tm/A)
 a. 12.6 T
  c. 1.25 T
  b. 2.50 T
  d. 6.28 T

Question 2

By what factor must one change the weight suspended vertically from a spring coil in order to double its period of simple harmonic motion?
 a. 4
  c. 1/2
  b. 2
  d. 1/4


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

vseab

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

A


pepyto

  • Member
  • Posts: 547
Reply 2 on: Jul 28, 2018
Excellent

mcabuhat

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Systemic acquired resistance to pathogen attack. Systemic acquired resistance to pathogen attack.
Large-Flowered Leafcup Large-Flowered Leafcup
Plasma protein binding and drug availability: (a) drug exists in a free state or bound to plasma pro Plasma protein binding and drug availability: (a) drug exists in a free state or bound to plasma pro
Seven black members of Congress in 1871 are from left to right: Senator Hiram Revels (R-MS) and Repr Seven black members of Congress in 1871 are from left to right: Senator Hiram Revels (R-MS) and Repr
A downward-sloping spark line usually indicates high secondary ignition system resistance or an ... A downward-sloping spark line usually indicates high secondary ignition system resistance or an ...
The Scale of the Very Small and Very Large: Powers of 10 The Scale of the Very Small and Very Large: Powers of 10
Video: Metaphase I Animation

For a complete list of videos, visit our video library