« previous next »

Author Question: A large electromagnet has a 22 T magnetic field between its poles. What is the magnetic energy ... (Read 58 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?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Lestidae is a rather small family of cosmopolitan, large-sized, slender damselflies. They are of the Lestidae is a rather small family of cosmopolitan, large-sized, slender damselflies. They are of the
ending is impeded by the magnetic attraction between stick and stickase ending is impeded by the magnetic attraction between stick and stickase
New Magnetic Cycle New Magnetic Cycle
Fossil Fuels Energy Yield and Pollutants—Comparison Fossil Fuels Energy Yield and Pollutants—Comparison
The Sun and the radiant energy The Sun and the radiant energy
graphic(04-40.jpg) Mary pushes horizontally on a large, heavy table which is s graphic(04-40.jpg) Mary pushes horizontally on a large, heavy table which is s
Video: Five phases of cardiac cycle & Atrial contraction

For a complete list of videos, visit our video library