« previous next »

Author Question: A magnetic field exists in a current-carrying coil of wire A) if it contains a piece of iron. B) ... (Read 29 times)

Yi-Chen

  • Hero Member
  • *****
  • Posts: 550
on: Jul 29, 2018
A magnetic field exists in a current-carrying coil of wire
 
  A) if it contains a piece of iron.
  B) with or without a contained piece of iron.
  C) only if the current changes.

Question 2

The magnetic field strength inside a current-carrying coil will be greater if the coil encloses
 
  A) a vacuum.
  B) a wooden rod.
  C) a glass rod.
  D) an iron rod.
  E) none of the above


izzat

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Field Thistle Field Thistle
In American Progress (1872), John Gast depicts a feminized (and eroticized) America moving westward, In American Progress (1872), John Gast depicts a feminized (and eroticized) America moving westward,
Iron metabolism. Iron metabolism.
A typical two-wire coil-on-plug ignition system showing the triggering and the switching being ... A typical two-wire coil-on-plug ignition system showing the triggering and the switching being ...
Hemoglobin Contains Heme Iron Hemoglobin Contains Heme Iron
Plant foods such as grains and vegetables are the main sources of nonheme iron in your diet Plant foods such as grains and vegetables are the main sources of nonheme iron in your diet
Video: Four Giant Convection Cells oF Earth

For a complete list of videos, visit our video library