What is a magnetic field?
Answer
A magnetic field is the region around a magnet or a current-carrying conductor in which its magnetic force can be experienced.
The working
Definition
A magnetic field is the space surrounding a magnet or a moving charge where a magnetic force acts on other magnets or currents.
Field lines
It is represented by magnetic field lines that run from the north pole to the south pole outside the magnet and form closed loops.
Vector quantity
The magnetic field is a vector quantity having both magnitude and direction, denoted by B, with SI unit tesla (T).
Sources
It is produced by permanent magnets and also by electric currents, as a current-carrying wire creates a magnetic field around it.
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