Question

what is magnetic field lines? write any four properties of magnetic field lines.

Answer 1

Answer:

A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. ... Magnetic fields and electric fields are interrelated and are both components of the electromagnetic force, one of the four fundamental forces of nature.

Magnetic fields can be pictorially represented by magnetic field lines, the properties of which are as follows:

1. The field is tangent to the magnetic field line.

2. Field strength is proportional to the line density.

3. Field lines cannot cross.

4. Field lines are continuous loops.

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Answer 2

Answer:

The area around the magnet or the current carrying conductor in which force of attraction or repulsion can be detected. Magnetic field in a given region can be represented with the help of magnetic field lines.

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$\red{ \bigstar} {\underline{ \textsf{\textbf{ Properties \: of \: magnetic \: field \: lines: }}}}$

• Magnetic field lines are imaginary lines used to show magnetic field in a given region.

• Magnetic field lines are closed continuous curves and are directed from north pole to south pole outside the magnet and from south pole to North pole inside the magnet.

• The tangent at any point on the magnetic fieldsl lines gives the direction of magnetic field at that point. This is also the direction of orientation of the needle of the magnetic compass if kept at the point.

• Magnetic field lines are closer together (crowded) in the region where the magnetic field is strong and are widely separated in the region where the magnetic field is weak.

• Magnetic field lines do not intersect each other. This is because if you place the magnetic compass at the point of intersection it will orient itself only in one direction and not in two directions.

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