In this post, you will get complete information about Plotting the magnetic lines of force around a bar magnet. Lines of force (Magnetic Fie...
In this post, you will get complete information about Plotting the magnetic lines of force around a bar magnet.
Lines of force (Magnetic Field Lines)
The space around a magnet where its influence can be felt is called magnetic field. line of fotce is an imaginary line along which an isolated north pole kept in a magnetic field tends to move. Lines of force, more appropriately, are referred to as magnetic field lines.
Plotting the magnetic lines of force around a bar magnet and magnetic field lines around a bar magnet
Plotting the Magnetic Lines of Force Around a Bar Magnet
- Draw a line in the middle of a white paper fixed on a drawing board.
- Place a bar magnet NS on the line such that its axial line coincides with the line on the paper and mark its boundary.
- Take a plotting compass and place it such that its S-pole is directed towards point O at the edge of the bar magnet, and mark the point 1 in the direction in which the north pole of the plotting compass points.
Mapping magnetic field lines - Repeat the procedure described in step (3), by shifting the compass and plot the points 2, 3, 4, etc.
- Join the points 0, 1, 2, 3, ..... by a smooth Curve.
The magnetic line of force for a bar magnet is a closed continuous curve along which a unit
north pole will move, and its direction is given by the direction in which a free N-pole would point. The lines of force due to a bar magnet is shown in Fig. 2. The lines start at the north pole and end at the south pole.
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| Magnetic field lines around a bar magnet |
Sprinkle some iron filings on a piece of paper and place it over a magnet. The iron filing arrange themselves in a certain pattern. It can be seen that the lines of force will be crowded near the poles.
The number of magnetic lines of force passing perpendicularly through a certain area gires the magnetic flux.
Conclusion
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