« previous next »

Author Question: A large electromagnet has a 22 T magnetic field between its poles. What is the magnetic energy ... (Read 107 times)

tth

  • Hero Member
  • *****
  • Posts: 579
on: Jul 29, 2018
A large electromagnet has a 22 T magnetic field between its poles. What is the magnetic energy density in that region of space? (0 = 4  10-7 T  m/
 
  A)
  A) 30,000 J/cm3 B) 190 J/cm3 C) 88 J/cm3 D) 240 J/cm3

Question 2

When a current of 2.0 A flows in the 100-turn primary of an ideal transformer, this causes 14 A to flow in the secondary. How many turns are in the secondary?
 
  A) 14 B) 4 C) 114 D) 356 E) 700


connor417

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Areas of Mediterranean shrubland in southern California periodically burn over large areas, destroyi Areas of Mediterranean shrubland in southern California periodically burn over large areas, destroyi
Vacuoles in Plant Cells Are Usually Large Vacuoles in Plant Cells Are Usually Large
Free Energy Enzymes Free Energy Enzymes
Large water tank, possibly a public or ritual bathing area, from Mohenjo-daro, Indus Valley ... Large water tank, possibly a public or ritual bathing area, from Mohenjo-daro, Indus Valley ...
Energy Metabolism During anaerobic metabolism Energy Metabolism During anaerobic metabolism
Selected hormones and their role in energy intake Selected hormones and their role in energy intake
Video: Parkinson's Disease

For a complete list of videos, visit our video library