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Is magnetic north equal to true north at any time during the year?
No. However, "magnetic north" is equal to true north for certain PLACES. The magnetic north pole is a slowly-wandering point which is currently in northern Canada. A line drawn from the north pole to the magnetic north pole, when extended through the rest of the world, defines a line of zero "magnetic variation", the amount by which magnetic north differs from true north. Most navigational maps are overprinted with lines of equal magnetic variation, and a navigator who neglects to properly apply the magnetic variation will become quickly lost.
What is the difference between magnetic and geographical North?
The geographic North and South Poles are the points representing the earth's axis and about which it rotates. The Geomagnetic Poles are the points where the earth's magnetic lines of force converge. The north and south geomagnetic poles are both some distance from the geographic poles.
What would happen if walkers did not adjust their compass readings to account for magnetic variation?
They would not arrive at the correct location. True north refers to the rotational pole. Compasses point roughly towards the magnetic pole. I say roughly because geographic and man made features can distort the magnetic waves. The rotational and magnetic pole are not at the same place. Most maps are drawn according to the rotational pole (true north).
What would happen if people did not adjust there compass readings to the account of true north?
They would not arrive at the correct location. True north refers to the rotational pole. Compasses point roughly towards the magnetic pole. I say roughly because geographic and man made features can distort the magnetic waves. The rotational and magnetic pole are not at the same place. Most maps are drawn according to the rotational pole (true north).
The needle of a compass points to what pole?
north pole Magnetic North PCH answer = Magnetic North
How can a magnet be used to find direction?
basically in a compass is a needle which is magnetic. The magnetic field of Earth attracts the north pole of the magnet (which is the needle in the compass) to the north pole of Earth. Same thing goes for the south pole of Earth
Does the compass needle point in the same direction indicated by the magnetic field maximum?
Your compass needle will align itself with the lines of magnetic force at your location. This will diverge from the simple 'earth monopole model' depending on the local magnetic field, and any local geomagnetic anomalies.On most topographic maps, the 'magnetic deviation' and its annual variance will be marked on the map legend. Where i am it is about 25 degrees east of the true magnetic north.
What magnet use in the compass?
non the compass uses the earths magnetic field that is why the north pole and south pole is the most important directions because the north and south pole have the most highest magnetic feilds
Is the magnetic pole another name for the south pole?
No. The Earth is a spinning sphere, and the axis of the rotation matches the Earth's surface at the north pole and the south pole. If the Earth had an axle, that's where they would poke out. The Earth is also a giant magnet, like an enormous bar magnet. The orientation of this magnet, and the magnetic lines of force from it, are not lined up with the physical axis of the Earth's rotation. The "north magnetic pole" is somewhere in northern Canada, while the south magnetic pole is in Antarctica. When navigating with a magnetic compass, the compass doesn't point at the north pole; it points to the north MAGNETIC pole. In most of Europe, there wasn't a whole lot of difference, but in North America, the difference between true and magnetic north can be dozens of degrees. Navigational maps will list lines of "magnetic variation", which is the difference between true north and magnetic north, so that you can apply the appropriate correction.
What is true north compared to magnetic north?
true north is the direction towards the Geographic north pole, the point on the globe exactly 90 degrees north of the equator, and thru which the earth's rotational axis meets the surface. Magnetic north is the direction towards the magnetic north pole which is predicted* to be located at 82.7 degrees north latitude, and 114.4 degrees west longitude (just north of Canada). Magnetic north is where a compass actually points to, so you must adjust your compass acordingly. *this is predicted because magnetic drift causes the pole to move from year to year.
Why a changing magnetic field affects a metal but not something made of plastic?
Because the entire concept of magnetic field is based on the element IRON (and to a much lesser degree, Nickel). Iron content? (most metals): Magnetic. Plastic based? (no iron): Not magnetic. Simple as that.
Magnetic field intensity of a straight conductor?
magnetic field is a region of space where a north magnetic monopole experiences a force. The direction of the field is by definition the direction of the force on the north end of a magnet. Since most texts contain diagrams of magnetic fields they will not be reproduced here.
