Question

how can we predict about the strength of a magnetic field in q space

Answer 1

Magnetic field written in term vector potential.By potential we can determine the strength of magnetic field.another way by magnetometer we can measure the strength of magnetic field.

Answer 2

Answer:

• The “strength of a magnetic field” in space can be determined by a magnetometer. This device measures the ‘strength and direction’ of a magnetic field.
• Space-based or vector magnetometers are used for measuring the magnetic field in space. A magnetic field is pictorially represented as magnetic field lines in an area.
• Magnetic flux represents the total number of lines penetrating at any point in an area.
• The magnetometers are provided with sensors that measure this magnetic flux density.
• The field strength of magnetic field is calculated by the density of the magnetic field lines and the relative distance between each line provides the relative strength of the magnetic field.
• These magnetic lines are unique and never cross another line at any point in the space.