Theory & Procedure, Field Lines formed around a Bar Magnet Class 10 Notes | EduRev
Science Class 10
Class 10 : Theory & Procedure, Field Lines formed around a Bar Magnet Class 10 Notes | EduRev
The document Theory & Procedure, Field Lines formed around a Bar Magnet Class 10 Notes | EduRev is a part of the Class 10 Course Science Class 10.
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Objective
To study field lines formed around the bar magnet.
Theory
- Magnets have two types of poles: north poles and south poles.
- The magnetic strength at the pole is the strongest.
- When a bar magnet is suspended freely in a horizontal position, the bar magnet will align itself in north-south direction, where the north pole of the magnet points to the north pole of the Earth.
- Like poles repel and unlike poles attract.
- Magnetic materials such as iron, nickel, steel etc. are attarcted by the magnets.
- Attractive and repulsive force of magnet depends how strong the magnet is.
- Magnetic force also depends on distance between the magnet and the object.
Behaviour of Bar Magnets in possible pole configurations.
As performed in the lab
Materials :
White paper sheet, drawing board, adhesive, bar magnet, iron filings and magnetic compass.
Procedure :
- Fix a sheet of white paper on a drawing board using some adhesive material.
- Place a bar magnet in the centre of it.
- Sprinkle some iron filings uniformly around the bar magnet.
- Now tap the board gently.
- Observe the pattern in which the iron filings arrange themselves.
- Use a magnetic compass to determine the direction of the field lines.
As performed in the simulator
- Drag the bar magnet or magnetic compass around and observe the deflection in needle of compass and magnetic field (B) acting on the magnetic compass.
- To view the magnetic field lines, click on Show Field Lines checkbox.
- For more detailed insights of the activity click on Observation tab.
Observation
- Direction in which compass needle points is the direction of the magnetic field.
- The strength of the magnetic field is inversely proportional to the distance between the field lines.
- Magnetic field lines never cross each other. It is unique at every point in space.
- Magnetic field lines begin at the north pole of a magnet and terminate on the south pole.
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