Question

What are magnetic field lines? how is the direction of a magnetic field at a point determined? ​

Answer 1

Answer:

Magnetic fields surround and are created by magnetized material and by moving electric charges (electric currents) such as those used in electromagnets. Magnetic fields exert forces on nearby moving electrical charges and torques on nearby magnets. ... Both the strength and direction of a magnetic field vary with location. hope it help thumbs up and like

Answer 2

Explanation:-

Magnetic feild lines :-

magnetic fielfd lines are the hypothetical energetic closed curve lines such that when a tangent is drawn at any point gives the direction of magnetic feild lines at that point .

Characteristics of magnetic field lines :-

• It forms closed closed curves .

• It emerges from north pole of a magnet and merges at south pole.

• Magnetic feild lines never intersect each other .

• Magnetic feild lines strength is maximum at poles and more minimum at south poles.

Direction of a magnetic feild at a point is determined by :-

Draw a tangent at that point gives the direction of magnetic feild lines at that point .

Note :-

Magnetic feild lines never intersect each other because if they do so we can draw two tangents at that point which is not possible .