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this is an imaginary line that runs from the earth's north pole to the south pole

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Difference between magnetic meridian and geographical meridian?

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.


Why does the earth rotate along its magnetic meridian?

It doesn't. The north pole and the north magnetic pole are miles apart.


Why do we need to orient entire set up in magnetic meridian before performing experiment?

Orienting the setup in the magnetic meridian helps ensure accuracy in experiments involving magnetic fields because it aligns the equipment with the Earth's magnetic field. This alignment reduces interference from external magnetic fields and produces more reliable results.


What is magnetic meridian in compass surveying?

The magnetic meridian in compass surveying is the line passing through a compass needle when it is freely suspended and allowed to align with the Earth's magnetic field. It represents the direction of the magnetic north pole at a particular location on the Earth's surface. It is an important reference in compass surveying for determining directions.


What is inclined at an angle of 11.5 degrees to earth's rotational axis?

magnetic meridian


What is the difference between magnetic meridian and geographical meridian?

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


A dip needle in a plane perpendicular to magnetic meridian will remain?

horizontal with its north pole pointing towards magnetic north.


Why tangent galvanometer is set into magnetic meridian?

A tangent galvanometer is set into the magnetic meridian to ensure that its plane is aligned with the Earth's magnetic field. This alignment allows for accurate measurement of the magnetic field produced by an electric current flowing through the coil of the galvanometer. When the galvanometer's coil is positioned in this way, the angle of deflection of the needle directly corresponds to the tangent of the ratio of the magnetic field due to the current to the Earth's magnetic field, facilitating precise calculations.


What cause deviation in a magnetic compass?

The compass needle will only align itself with the magnetic meridian if it is free from all other influences except the magnetic field of earth.This is rarely so, particularly on a ship which constructed on steel. The magnetism induced in the steel by the earths magnetic field causes the compass needle to deviate from the magnetic meridian, by an amount which is called the DEVIATION.


Why gyro compass it seeks the true meridian instead of the magnetic meridian?

A gyro compass seeks the true meridian because it is designed to align with the Earth's rotation rather than magnetic fields, which can be influenced by local anomalies and variations. Unlike magnetic compasses, which rely on Earth's magnetic field and can be affected by nearby metallic objects or geological formations, a gyro compass uses the principles of angular momentum and precession to maintain a stable reference direction aligned with true north. This accuracy makes gyro compasses essential for navigation in applications where precise heading is critical, such as in aviation and maritime operations.


What is the name of the line with whcih a compass aligns?

The line with which a compass aligns is called the magnetic meridian. This line indicates the direction of the Earth's magnetic field at a specific location. Compasses point towards magnetic north, which is generally close to, but not the same as, true north, due to the Earth's magnetic field being irregular.


What exactly is a tied gyro and how do they 'tie' it?

It is a horizontal gyroscope employing a 2 degree-of-freedom gyroscope with its spin axis aligned with the earth's magnetic meridian