If Veronica spins in a circle with the compass in her hand, then the force which keeps the compass' needle pointing north is magnetic field.
What is magnetic force?
The magnetic influence on moving electric charges, electric currents, and magnetic materials is described by a magnetic field, which is a vector field. In a magnetic field, a moving charge receives a force that is perpendicular to both its velocity and the magnetic field.
- The magnetic field is defined as a region where the force is active along imaginary lines.
- This force has an effect on all magnetized objects from the south magnetic pole to the north magnetic pole, including the needle of a compass.
- The needle always points north magnetic pole under the influence of the Geomagnetic field.
Hence the required force is a magnetic force.
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