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# Electromagnetic Induction

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Levels are CK12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Electromagnetic Induction

Students will learn how to determine the flux and how to calculate the induced voltage. In addition, Students will learn Lenz law and how to use it to determine the direction of the induced current in a loop of wire.

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## Electromagnetic Induction

by CK-12 //basic

What electromagnetic induction is and how it occurs, the current produced from it and how it is used.

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• Video

## How It's Made Induction Cooktops

by CK-12 //basic

A great video that shows how induction cooktops are made, courtesy of Discovery / Science Channel

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• Video

## The Ring Launcher Explanation

Provides a physics explanation to the famous ring launcher demonstration.

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## Ring Launcher in Slow Motion

The ring launcher demonstration is shown in slow motion.

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## Introduction to Electromagnetic Induction - Overview

by CK-12 //basic

Overview

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## Motional EMF - Overview

by CK-12 //basic

Overview

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## Faraday's Law: Magnitude of Induced Current - Overview

by CK-12 //basic

Overview

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## Lenz's Law: Direction of the Induced Current - Overview

by CK-12 //basic

Overview

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## Introduction to Electromagnetic Induction - Example 1

by CK-12 //basic

Determining whether or not a current will be induced in a circuit given a scenario

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## Introduction to Electromagnetic Induction - Example 2

by CK-12 //basic

Determining the effect of changing the angle between a magnetic field and a circuit on the induced voltage and current

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## Introduction to Electromagnetic Induction - Example 3

by CK-12 //basic

Determining the effect of changing the number of magnetic field lines on the induced voltage and current

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## Motional EMF - Example 1

by CK-12 //basic

Determining the effect of changing the velocity, the length of wire, and the strength of the magnetic field on the induced voltage and current

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## Motional EMF - Example 2

by CK-12 //basic

Solving problems involving motional emf using the equation emf = vBl

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## Faraday's Law: Magnitude of Induced Current - Example 3

by CK-12 //basic

Determining the magnitude of induced current using the equation I = emf / R

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## Lenz's Law: Direction of the Induced Current - Example 1

by CK-12 //basic

Determining the direction of induced current by applying Lenz's law

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## Faraday's Law: Magnitude of Induced Current - Example 1

by CK-12 //basic

Determining the magnetic flux through a circuit using the equation Φ[B ]= ABcosθ

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## Faraday's Law: Magnitude of Induced Current - Example 2

by CK-12 //basic

Solving problems involving Faraday's law and the magnitude of induced emf using the equation emf = -NΔϕ[M]/Δt = -NΔ

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• Practice

## Electromagnetic Induction Practice

by CK-12 //basic

Practice Electromagnetic Induction questions

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## Inductance Quiz - PPB

A changing magnetic field will induce a current that opposes the changing magnetic field. Calculate directions and electromagnetic flux.

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• Critical Thinking

## Inductance Discussion Questions

A list of student-submitted discussion questions for Inductance.

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• Simulation

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• Study Guide

## Magnetism Study Guide

This study guide reviews electromagnetism concepts: magnetic field and field lines, first right hand rule, magnetic flux, solenoid, electromagnetic induction, force on charged particle, second right hand rule, and inductance.

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• Flashcards

## Inductance Flashcards

by CK-12 //basic