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Physics
»
F.
Electromagnetism
»
F.5.
Electromagnetic Induction
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Introduction to Electromagnetic Induction
Overview
Determining whether or not a current will be induced in a circuit given a scenario
Determining the effect of changing the angle between a magnetic field and a circuit on the induced voltage and current
Determining the effect of changing the number of magnetic field lines on the induced voltage and current
Motional EMF
Overview
Determining the effect of changing the velocity, the length of wire, and the strength of the magnetic field on the induced voltage and current
Solving problems involving motional emf using the equation emf = vBl
Faraday’s Law: Magnitude of Induced Current
Overview
Determining the magnetic flux through a circuit using the equation Φ
_{B }
= ABcosθ
Solving problems involving Faraday’s law and the magnitude of induced emf using the equation emf = -NΔϕ
_{M}
/Δt = -NΔ
Determining the magnitude of induced current using the equation I = emf / R
Lenz’s Law: Direction of the Induced Current
Overview
Determining the direction of induced current by applying Lenz’s law
Faraday’s Law: Magnitude of Induced Current — Determining the magnitude of induced current using the equation I = emf / R
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