the vertical plane passing through magnetic axis is magnetic meridain and the vertical plane passing through geographical axis in geographical meridain.the intersting fact is they are not parallel...but remain at certain angle ..the maximum angle made is 17 degree
The question is probably related to the magnetic vs. geographic poles. The Earth's geographic north pole and south pole are related to the rotation of the Earth - the axis passes through the poles. The magnetic south pole, on the other hand, is near the geographic north pole (yes, north, not south - opposite poles attract each other, and "north" is where the north part of a compass needle points!). But those poles - the geographic north pole and the magnetic south pole, for example - don't match exactly.
magnetic variation
Zero.
The Greenwich Meridian, also known as the prime meridian or International Meridian, bisects the primary division of time zones. Each time zone is 15 degrees of longitude in width, with local variations, and observes a clock time one hour earlier than the zone immediately to the east. The time difference between two meridian lines is one hour (the time difference between two longitudinal lines is 4 minutes and consequently the time difference between 15 longitudinal lines; or two meridian lines; would be one hour). Refer to link below.The Greenwich Meridian bisects the primary division of time zones. Each time zone is 15 degrees of longitude in width, with local variations, and observes a clock time one hour earlier than the zone immediately to the east. The time difference between two meridian lines depends on where you draw the lines. There is no official standard set of lines that everyone is required to use, and a line can be drawn at ANY longitude. Whatever the longitude difference is between the two meridians you decide to consider, the time difference between them (in hours) is nominally 1/15 of that angle.
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.
true
A magnetic meridian is a line passing through a location connecting its magnetic north and south poles, while a geographical meridian is a line passing through a location connecting its geographic north and south poles. The magnetic meridian is affected by the Earth's magnetic field, while the geographical meridian is based on the Earth's rotation.
the magnetic north pole moves while the geographic north pole stays in the same place
differences between equator and prime meridian
15
The main difference between the eastern and western hemispheres is their geographical location. The eastern hemisphere includes parts of Africa, Asia, Europe, and Australia, while the western hemisphere includes parts of North and South America. Additionally, the eastern hemisphere is often associated with older civilizations and cultures, while the western hemisphere is known for its more recent history of colonization and globalization.
No difference - a cassette contains magnetic tape.
magnetic variation
magnetic tapes are cheaper
magnetic variation
It will be 180 degrees in any position between the north magnetic pole and the geographical north pole and similar at the south pole
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.
Magnetic declination or variation.