When experiencing a turn while on a northerly heading, what does the compass do?

When an aircraft is on a northerly heading and enters a turn, the behavior of the magnetic compass is notably influenced by the phenomenon known as magnetic dip. As the aircraft turns from a northerly heading, the compass will lag in its indication of the turn direction. This lag causes the compass to display a turn in the opposite direction momentarily, leading pilots to experience what is known as compass "precession."

The reason this occurs is due to the way the magnetic compass works in relation to the Earth's magnetic field. When turning, especially from a northerly heading, the weight of the compass card causes it to momentarily continue pointing towards magnetic north even as the aircraft's heading changes. As the aircraft turns to the right, for example, the compass initially appears to turn left before catching up and indicating the correct direction. This phenomenon can lead to confusion during flight if a pilot is not aware of it, which is why understanding compass behavior is crucial in navigation.

The other options do not accurately describe the compass behavior during a turn from a northerly heading. An accurate turn direction indicated immediately would suggest instantaneous response, which is not the case due to the lag. Similarly, leading to show a turn in the opposite direction misrepresents