Electric generator

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/electric-generator

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 fundamental principle?Electromagnetic induction, as described by Faraday's Law
2. What is the key historical development?The invention of the dynamo and the subsequent development of AC generators
3. What is an electric generator and how does it work?An electric generator turns spinning motion into electricity. It uses a magnetic field and a conductor. When the rotor spins, the magnetic field moves across the stator coils, creating an electric current.
4. Who discovered the principle that lets generators make electricity?Michael Faraday discovered electromagnetic induction in 1831. He showed that moving a conductor through a magnetic field creates an electric current.

Electromagnetic Induction: The production of an electromotive force across an electrical conductor in a changing magnetic field.
Stator: The stationary part of an electric generator, typically containing the windings where current is induced.
Rotor: The rotating part of an electric generator, usually containing magnets or electromagnets that create the magnetic field.
Alternating Current (AC): Electric current that periodically reverses direction, commonly used for power transmission.