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