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Master Math: Essential Physics by David Allen Lawrence, Debra Anne Ross Lawrence

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Chapter 12ALTERNATING CURRENT

12.1. Alternating Current

12.2. Capacitance in an AC Circuit

12.3. Inductance in an AC Circuit

12.4. RCL Circuits

12.5. Key Concepts and Practice Problems

“The seeds of great discoveries are constantly floating around us, but they only take root in minds well prepared to receive them.”

Attributed to Joseph Henry, first director of The Smithsonian Institution

12.1. Alternating Current

• In a simple generator a loop-shaped conductor (which can be a wire circuit loop or a wire-wrapped iron core) called an armature is rotated in a magnetic field, thereby inducing a current. A generator uses the principle of inductance and a changing magnetic flux to create electric current. A generator is most efficient when the circuit ...

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