Magnetic dipole

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/magnetic-dipole

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the observed phenomena?Atomic magnetic moments, Earth's magnetic field, magnetic storage, electric motors
2. What is the related concepts?Multipole expansion, magnetic moment, magnetic monopole (hypothetical)
3. How does a magnetic dipole create a magnetic field?The magnetic field comes from the dipole’s magnetic moment. For a current loop, the field lines go from the north to the south pole, and the direction follows the right‑hand rule.
4. Why does the magnetic field from a dipole get weaker with distance?The field strength falls off as 1 over the cube of the distance (1/r³), so it gets weaker quickly as you move farther away.

Magnetic Moment: A vector quantity measuring the strength and orientation of a magnetic dipole or magnetic body.
Multipole Expansion: A mathematical technique to represent a field as a sum of terms (monopole, dipole, quadrupole, etc.) based on distance.
Current Loop: A closed path carrying electric current, which generates a magnetic dipole field.