Which of the following gives the magnetic flux through a flat surface of area placed…

PHYSICS · Single correct · AP · Physics C: Electricity and Magnetism · Electromagnetic Induction · Electromagnetic Induction

Problem

Which of the following gives the magnetic flux ΦB\Phi_B through a flat surface of area AA placed in a uniform magnetic field of magnitude BB making an angle θ\theta with the normal to the surface? (a) ΦB=BAsin⁡θ\Phi_B = BA \sin \theta (b) ΦB=2BAcos⁡θ\Phi_B = 2BA \cos \theta (c) ΦB=BAcos⁡θ\Phi_B = BA \cos \theta (d) ΦB=BAcos⁡2 ⁣θ\Phi_B = BA \cos^2\!\theta

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