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

Magnetic flux is a scalar product of _.

Correct answer: B. B and A

  • A. B and V
  • B. B and A
  • C. B and I
  • D. None of these options are correct

Explanation

Magnetic Flux Φ is the dot / scalar product of magnetic flux density B, and cross-sectional area of coil A. Therefore, Φ = B.A. Hence Option B is correct.

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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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