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What is the region around a magnet called, where the force of the magnet can be detected?
Magnetic line
Magnetic field
Magnetic zone
Magnetic pole
Magnetic field
A magnetic field is the region or space around a magnet or a moving electric charge where a magnetic force can be detected. In this region, other magnets or magnetic materials experience a force of attraction or repulsion.
A magnetic field is the region or space around a magnet or a moving electric charge where a magnetic force can be detected. In this region, other magnets or magnetic materials experience a force of attraction or repulsion.
Think of it like a 'force field' around a person's personal space; you don't feel anything until you get close enough to touch or interact with them, just as a paperclip is only pulled toward a magnet once it enters the magnet's invisible field.
F=q(v×B) — Lorentz force exerted by a magnetic field
Φ=∫B⋅dA — Magnetic flux through an area
The magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. It is generated by moving charges (current) or intrinsic magnetic moments of elementary particles. The force F exerted on a charge q moving with velocity v in a magnetic field B is given by the Lorentz force law.
Magnetic field lines originate from the North Pole and terminate at the South Pole.
The density of field lines indicates the strength of the magnetic field.
Magnetic field lines never intersect each other.
The SI unit of magnetic field strength is the Tesla (T).
Electric motors and generators
MRI machines in hospitals
Magnetic field (B) is a vector quantity having both magnitude and direction.
Option A (Magnetic line) refers to the trajectory, not the region itself.
Option D (Magnetic pole) refers to the points at the ends of a magnet where the field is strongest.
B is correct — The region around a magnet where its influence can be detected is defined as the magnetic field.
Always remember that magnetic field lines are closed loops; they exist inside the magnet (South to North) and outside (North to South).