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Which expression gives magnetic flux?

Physics
JAMB 2022

Which expression gives magnetic flux?

  • A. qVB sin\(\theta\)
  • B. \(\frac{\mu \phi I}{2 \pi r}\)
  • C. BA cos \(\theta\)
  • D. -N \(\frac{d \phi}{dt}\)
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Correct Answer: Option C
Explanation

the magnetic flux through a surface is the surface integral of the normal component of the magnetic field B over that surface.

It is usually denoted Φ or ΦB. The SI unit of magnetic flux is the weber

Mathematically it is represented as B = Φ/A

 where B is magnetic flux density in teslas (T),

Φ is magnetic flux in webers (Wb), and

A is area in square meters (m2).

There is an explanation video available below.


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Explanation Video

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