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Describe how to show the magnetic field of a bar magnet - Leaving Cert Physics - Question h - 2022
Question h
Describe how to show the magnetic field of a bar magnet. N S
Worked Solution & Example Answer:Describe how to show the magnetic field of a bar magnet - Leaving Cert Physics - Question h - 2022
Step 1
Distribute iron filings
Answer
To visually demonstrate the magnetic field of a bar magnet, you can use iron filings. Place a sheet of paper or a transparent plastic over the bar magnet. Evenly sprinkle the iron filings on top of the paper. Gently tap the paper to allow the filings to settle. As the filings align according to the magnetic field lines, they will reveal the shape and direction of the field, which flows from the north (N) pole to the south (S) pole.
Step 2
Move compass
Answer
Another method is to use a small compass. Place the compass at various points around the bar magnet. Observe the direction in which the compass needle points. The needle will align itself along the magnetic field lines, showing you the field direction. The north end of the compass needle will point toward the south pole of the magnet, indicating the direction of the magnetic field lines.