AP Physics 2:Unit 4 Variables

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10 Terms

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(any field)•(Area)

flux: amount of field lines piercing an area (no units)

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θ (flux)

angle between field and "piercing" area (º)

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ΦM

magnetic flux (T•m² or Wb)

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A (flux)

area containing field vectors (m²)

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ΔB/Δt

rate of change of magnetic field (T/s)

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𝓔

electromotive force: no starting point, just a loop of electrical "pressure" (V)

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v (induction)

velocity of the rectangle-area (m/s)

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Sliding Bar Induction (constant velocity)

Constant Emech => Pexternal = Presistor

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Sliding Bar Induction (increasing velocity)

Increasing Emech => Pexternal > Presistor

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Sliding Bar Induction (decreasing velocity)

Decreasing Emech => Pexternal < Presistor