Magnetic flux
What Magnetic flux means in Physics A-Level, as defined for AQA, OCR.
Definitions of Magnetic flux
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Reference: AQA
The product of flux density and the area perpendicular to the field, Φ = BAcosθ, with θ measured between the field direction and the normal to the coil.
Given by Φ = BA cos θ, with B in tesla, A in m² and θ measured between B and the normal to the area.
Quantifies the magnetic field passing through a surface, defined by Φ = BA where B is normal to A.
The product of flux density and the area perpendicular to the field, measured in weber.
Topics that use Magnetic flux
- Magnetic flux and flux linkage (A-level only) (AQA A-Level)
- Electromagnetism (OCR A-Level)
Related terms
- Cosine variation with angle
- Faraday's law
- Flux linkage
- Lenz's law
- Transformer action and turns ratio
- Weber
- Φ = BA cos θ
- Angle between field and normal
Using Magnetic flux in the exam
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