PhysicsLAB: Induction

CP Workbook
Induction

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Hans Christian Oersted discovered that

magnetism and electricity are relatedindependent of each other

Magnetism is produced by

batteriesthe motion of electric charges

Faraday and Henry discovered that electric current can be produced by

batteriesthe motion of magnet

More specifically, voltage is induced in a loop of wire if there is a change in the

batteriesmagnetic field in the loop

This phenomenon is called

electromagnetismelectromagnetic induction

When a magnet is plunged in and out of a coil of wire, voltage is induced in the coil. If the rate of the in-and-out motion of the magnet is doubled, the induced voltage

doublesremains the samehalves

If instead the number of loops in the coil is doubled, the Induced voltage

doublesremains the samehalves

A rapidly changing magnetic field in any region of space induces a rapidly changing electric field

magnetic fieldgravitational field

which in turn induces a rapidly changing magnetic field

electric fieldbaseball field

This generation and regeneration of electric and magnetic fields makes up

electromagnetic wavessound wavesboth of these

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Lab:	Labs - Telegraph Project
Resource Lesson:	RL - A Comparison of RC and RL Circuits RL - A Special Case of Induction RL - Eddy Currents plus a Lab Simulation RL - Electricity and Magnetism Background RL - Generators, Motors, Transformers RL - Induced Electric Fields RL - Induced EMF RL - Inductors RL - LC Circuit RL - Maxwell's Equations RL - Motional EMF RL - RL Circuits
Review:	REV - Drill: Induction
Worksheet:	CP - Power Transmission CP - Transformers NT - Induction Coils WS - Induced emf WS - Practice with Induced Currents (Changing Areas) WS - Practice with Induced Currents (Constant Area)