Electromagnetic Induction

Physics

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Electromagnetic Induction

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Electromagnetic induction

The production of induced electric current without the use of any source of electricity by making relative motion between conductors or magnets

Way to generate voltage by electromagnetic induction

Voltage is generated when a straight wire is moved across a magnetic field on a permanent magnet or a permanent magnet is moved in a solenoid

Way to detect induced current

The existence of induced currents can be proven by the movement of the needle deflection on the galvanometer

Faraday's Law

The magnitude of the electromotive force (e.m.f) is directly proportional to the rate of change in the magnetic flux

Lenz's Law

The resulting induction current is always flowing in the direction that opposes the change in magnetic flux that produces it

Electromagnetic induction

Electromagnetic induction also causes kinetic energy changes to electrical energy.

Induced current

Force + magnetic

Fleming's right-hand rule

Determine the the direction of induced current

The resulting induction current is always flowing in the direction that opposes the change in magnetic flux that produces it. This is the definition of

Lenz's law

The magnitude of the electromotive force (e.m.f) is directly proportional to the rate of change in the magnetic flux. This is the definition of

Faraday's Law

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Electromagnetic Induction

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