explain how a magnetic compass helps us to find directions in physics
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Compasses are mainly used in navigation to find direction on the earth. This works because the Earth itself has a magnetic field which is similar to that of a bar magnet (see the picture below). The compass needle aligns with the Earth's magnetic field direction and points north-south.
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A compass has a magnetic needle that can rotate freely. When a compass is kept at a place, the magnetic needle aligns in a north-south direction. ... The red arrow of the compass is termed as the North Pole and the other end is called as is termed as the South Pole and this helps Compass to fire us to find the directions.
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