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Understanding the Basic Principles of Electromagnets and Their Applications

This overview explores the fundamental principles of electromagnets, detailing their key components: solenoids, iron cores, and electric sources. It explains how to increase the magnetic field through coil number, current, and core mass, as well as how to reverse the magnetic poles by altering wire connections. Additionally, the history of electromagnetism is touched upon, highlighting Hans Christian Ørsted's groundbreaking discovery in 1820, which laid the groundwork for future advancements in this field.

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Understanding the Basic Principles of Electromagnets and Their Applications

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  1. 827 Describe the basic principles of an electromagnet.

  2. Describe the basic principles of an electromagnet. • Key concepts/skills: Level 1: Define key vocabulary. Level 2: Describe the basic principles of an electromagnet. Level 3: Recognize how to increase, decrease or reverse the poles of the magnetic field given specific situations.

  3. Describe the basic principles of an electromagnet. • Key vocabulary • Electromagnet • North pole • South pole • Domain • Solenoid • Reverse polarity

  4. Describe the basic principles of an electromagnet. • Electromagnets A. Parts 1.Solenoid – a current-carrying wire that is coiled 2. Iron core – a metal object with a high amount of iron 3. Battery – all electromagnets must have a source of electricity.

  5. Describe the basic principles of an electromagnet. II. Changing the magnetic field A. Increasing the size of the magnetic field 1. Increasing the number of coils in the solenoid increases the magnetic field 2. Increasing the current in the wire increases the magnetic field 3. Increasing the mass of the iron core increases the magnetic field

  6. Describe the basic principles of an electromagnet. III. Reversing the poles A. When you reverse the wires of the electromagnet on the battery, the north and south poles reverse.

  7. Describe the basic principles of an electromagnet. IV. History A. Hans Christian Orsteddiscovered in 1820 that a current carrying wire creates a magnetic field. He could never explain why but his discovery would lead to many others.

  8. Describe the basic principles of an electromagnet.

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