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

Magnetic flux is the dot product of magnetic induction and

Correct answer: B. Vector area

  • A. Area
  • B. Vector area
  • C. Unit area
  • D. None of these

Explanation

Magnetic flux is the amount of magnetic field passing through a given area. It is found as the dot product of magnetic field B with area A . (The direction of an area vector is normal , or perpendicular, to the surface of the area).

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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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