GEOLOGY

EARTH SCIENCE

MAGNETISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why does a compass needle point North?
A
It is attracted to the North pole.
B
It is attracted to Earth’s magnetic pole.
C
It is attracted to the South pole.
D
None of the above.
Explanation: 

Detailed explanation-1: -The magnetic field is a zone where the force is active along imaginary lines. From the south magnetic pole to the north magnetic pole, this force has an effect on all magnetized objects, such as the needle of a compass. Under the effect of Earth’s magnetic field, the needle always points toward the north magnetic pole.

Detailed explanation-2: -Earth’s south magnetic pole is near Earth’s geographic north. Earth’s magnetic north pole is near Earth’s geographic south. That’s why the north pole of a compass points toward north because that’s where Earth’s south magnetic pole is located and they attract.

Detailed explanation-3: -Earth’s geographic North Pole is close to the magnetic south pole. Magnets allowed to move freely align themselves to point north. The north pole on a compass is attracted to Earth’s magnetic north pole. The north pole on a compass is attracted to Earth’s magnetic south pole.

Detailed explanation-4: -If you mean the geographical North Pole, the needle would point south, as that is the only direction one can go from there; more specifically it would point south along the 112.4 degrees west longitude meridian towards the magnetic north pole at 82 degrees north, which is where compasses point.

Detailed explanation-5: -Magnetic dip results from the tendency of a magnet to align itself with lines of magnetic field. As the Earth’s magnetic field lines are not parallel to the surface, the north end of a compass needle will point downward in the northern hemisphere (positive dip) or upward in the southern hemisphere (negative dip).

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