Physics I Class 22 The Magnetic Field.

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Presentation transcript:

Physics I Class 22 The Magnetic Field

Magnetism in Ancient Times

Chinese Voyages of Exploration Admiral Zheng He (1371-1435)

Peter Peregrinus

William Gilbert

Magnetic Forces Between Poles “Opposites Attract”

Why Is A Magnet Attracted to Some Materials (Refrigerators)?

What Happens If You Try to Separate North and South Poles?

Magnetic Field Lines

Electromagnetism

Units of Magnetic Field

Class #22 Take-Away Concepts

Class #22 Problems of the Day

Answer to Problem 1 for Class #22

Class #22 Problems of the Day

Answer to Problem 2 for Class #22

Activity #22 Introduction to Magnetic Fields