Magnetic field lines

Let us learn about "Magnetic field lines"

A magnetic field lines can be created with moving charges, such as a current-carrying wire. A magnetic field can also be created by the spin magnetic dipole moment, and by the orbital magnetic dipole moment of an electron within an atom.

A magnet produces a vector field, the magnetic field, at all points in the space around it. It can be defined by measuring the force the field exerts on a moving charged particle, such as an electron. The force (F) is equal to the charge (q) times the speed of the particle times the magnitude of the field (B), or F = q*v x B, where the direction of F is at right angles to both v and B as a result of the cross product. This defines the magnetic field's strength and direction at any point.

Magnetic fields are produced by magnetic materials and electric currents. It ca n be detected by the force exerted by the magnetic materials on other magnetic materials and moving electric charges. Magnetic field sources are dipolar in nature, having a north and south magnetic pole. The magnetic field at any point is described by both a direction and a magnitude (or strength).

In our next blog we shall learn about "parts of eye"

I hope the above explanation was useful.Keep reading and leave your comments.