Magnetic effect of electric current
Due to passing of electric current through a conductor magnetic field generate around it this effect is called magnetic effect of current.
Magnet a magnet is that substance which attracts ferromagnetic elements like iron Cobalt and nickel.
When a bar magnet suspended freely from a thread its direction become North and South because Earth is also a huge magnet.
Oersted experiment first of all in 1820 Christian oersted proved it by an experiment that when an electric current passing through a conductor it deflect compass needle perpendicular to the conductor
this experiment had proved that a current carrying conductor also produce magnetic field whose position is perpendicular to the the direction of flow of electric current. The force produced by magnetic field has both magnitude and direction and therefore it is a vector quantity and noted by B
Magnetic field: The area around a magnet where a magnetic force is experienced is called the magnetic field. It is a quantity that has both direction and magnitude, (i.e., Vector quantity
Magnetic field and field lines: The influence of force surrounding a magnet is called magnetic field. In the magnetic field, the force exerted by a magnet can be detected using a compass or any other magnet.
The magnetic field is represented by magnetic field lines.
The imaginary lines of magnetic field around a magnet are called field line or field line of magnet. When iron fillings are allowed to settle around a bar magnet, they get arranged in a pattern which mimicks the magnetic field lines. Field line of a magnet can also be detected using a compass. Magnetic field is a vector quantity, i.e. it has both direction and magnitude
Direction of lines of force is from north pole to south pole and when a tangent draw on the force lines it indicates direction.
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