Magnetic flux will be maximum when:
Correct answer: A. Magnetic field is perpendicular to the plane area
- A. Magnetic field is perpendicular to the plane area
- B. Magnetic field lies parallel to the plane area
- C. Area is held at an angle of 45º
- D. Magnetic flux density is perpendicular to area vector of the surface
Explanation
When the magnetic field is perpendicular to the plane of the area (i.e., the angle θ between the magnetic field and the normal to the surface is 0°), the magnetic flux is maximized. This is because the cos of 0° is 1, and from the magnetic flux equation ΦB =BAcosθ, we can see that the flux ΦB is maximum when cos θ is maximum (which is 1). So, for maximum magnetic flux, the magnetic field should be perpendicular to the plane 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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