Magnetic flux is 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
Explanation
Option B is correct since magnetic flux is the scalar product (dot product) of the magnetic field vector and area vector. The magnetic field and area are parallel to each other, therefore it is a dot product. Magnetic flux is simply imaginary magnetic field lines passing through a given area that does not need a specific direction, hence it is scalar Option A is incorrect since the dot product of B and V does not give a magnetic flux Option C is incorrect since the dot product of B and I does not give a magnetic flux Option D is incorrect since it states none of these, which is not the case.
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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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