That's the "magnetic declination". Since the true north pole and the magnetic north pole
are located at different points on the earth, the declination is a different angle in different
places on earth.
There is a general geographical difference, called magnetic declination. In addition, there may be differences that arise locally, as a result of nearby objects that attract a magnet, which is called magnetic deviation. Related links are given below.
Magnetic variation, deviation, or declination.
magnetic variation or just variation
magnetic deviation
First of all, we're pretty sure that you're referring to "variation", not "declaration".Magnetic variation is the difference between the direction from you to the north pole (called "true north"), and the direction in which your magnetic compass points.That difference changes with your position on earth, because the north pole and theplace your compass points to are two different places. If you were standing at the point that's exactly halfway between them, then your compass would point exactly away from the north pole. And if you're not between them, but you're standing on the extension of the line between them, then your compass it pointing at the north pole, because both points are in the same direction from you.If you look at a navigational map, you will see lines of magnetic variation printed on the map. If you read your magnetic compass and apply the magnetic variation (printed on the map), you can calculate the direction of TRUE north.
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These magnetic disturbances are known as magnetic storms.
Epact
DIP
the process in which body moves around its axis and covers certain angle then this motion is called angular motion.
It is measured exactly the same in the Southern hemisphere (no difference between the two hemispheres). It is the difference between magnetic north and true north and it varies all over the globe. Magnetic declination (also called magnetic variation) is positive when magnetic north is east of true north (clockwise) and it is negative when magnetic north is west of true north (anti-clockwise).
Voltage drop
The angle between the geographic and magnetic poles extends more towards the east, as you move to the north. The magnetic pole is actually near Greenland.
A black hole can have an electric charge if it swallows electrically charged objects, but no objects that we know of have magnetic charge. Magnets always have both a north pole and a south pole; there is no evidence that one can exist alone. A lone north or south pole would be called a magnetic monopole, and would have magnetic charge. If we discovered a magnetic monopole and fed it to a black hole then the black hole would gain the magnetic charge.
An angular joint is a joint that changes the angle between two bones without gliding or rotary movement. It is also sometimes called a hinge joint.
An angular joint is a joint that changes the angle between two bones without gliding or rotary movement. It is also sometimes called a hinge joint.
Magnetic declination
When sailing a course magnetic bearings are used. However there is a difference between magnetic north and true north called the magnetic variation, this changes year by year and can be a very significant figure depending on your position. It is important therefore to know this to ascertain ones true course.
The moment of linear momentum is called angular momentum. or The vector product of position vector and linear momentum is called angular momentum.
The angle between geographic north and magnetic north, to which a compass needle points, is known as magnetic declination. It varies depending on your location on the Earth's surface and can be either east or west of true north. It is important to account for this difference when using a compass for navigation.
The sum of variation and deviation. The angle of magnetic declination, or magnetic variation, is the angle between the local magnetic field lines with which a magnetic compass needle lines up and the direction of true north, the north axis point of Earth. In the U.S., that angle varies between 0 degrees and about 20 degrees and also varies over time.The difference between "true" north and "magnetic" north is called "magnetic variation", which is often abbreviated as "mag var".The north magnetic pole is in northern Canada, but is continually (although slowly) moving. Topographical or navigational maps are generally overprinted with "mag var" lines and the amount of correction.