Compasses are designed so that they point to earth magnetic north. What are some things that would prevent a compass from pointing to earth magnetic north pole?
1. Nearby magnetic objects: If there are other magnetic objects nearby, such as metals or electronics, they can interfere with the compass and cause it to point in the wrong direction.
2. Electrical interference: Strong electromagnetic fields from power lines, electronics, or other sources can disrupt the compass's ability to point to magnetic north.
3. Incorrect calibration: If the compass is not properly calibrated or adjusted, it may not accurately point to magnetic north.
4. Deviation: Local variations in the earth's magnetic field, known as magnetic deviation, can cause the compass to point slightly off from true magnetic north.
5. Physical obstructions: If the compass is obstructed or tilted, it may not be able to freely align with the earth's magnetic field and point to magnetic north.