Asked in Premeth MDCAT 2025 LR-04 — Electromagnetism, Transition Elements 2025Moderate

What is the formula for magnetic flux?

Correct answer: A. BA cos(θ)

  • A. BA cos(θ)
  • B. BA
  • C. B
  • D. BA sin(θ)

Explanation

In physics, specifically electromagnetism, the magnetic flux through a surface is the surface integral of the normal component of the magnetic field B over that surface. The SI unit of magnetic flux is the Weber.

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About Magnetic Flux

Magnetic flux measures the magnetic field passing through a surface, calculated for a uniform field as Φ = BA cos θ, where θ is the angle between the field and the surface normal. Questions involve area, field strength and orientation, the weber as its unit, and the distinction between flux and magnetic field.

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