Which of the following is a vector quantity?
Correct answer: D. Both A and B
- A. Megnetic flux density
- B. Megnetic field lines
- C. Megnetic flux
- D. Both A and B
Explanation
Note, the magnetic flux is a scalar quantity, while the magnetic field and area are bivectors. In electromagnetism, 'flux' is defined as a scalar (the surface integral of a vector field, i.e. a density function by unit area), with the term 'flux density' used for the bivector or vector.The magnetic field is described mathematically as a vector field. This vector field can be plotted directly as a set of many vectors drawn on a grid. Each vector points in the direction that a compass would point and has length dependent on the strength of the magnetic force.Megnetic flux density = B = magnetic field lines (N→S)
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About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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