A bar magnet is immersed in a heap of iron filings and pulled out. The...
Understanding the Behavior of a Magnet with Iron Filings
When a bar magnet is immersed in iron filings and pulled out, the distribution of the filings can reveal important properties of magnetism.
Magnetic Poles
- A bar magnet has two distinct poles: the North pole and the South pole.
- Each pole has a magnetic field that attracts iron filings.
Attraction of Iron Filings
- North Pole Attraction: The North pole attracts iron filings due to its magnetic field, causing a significant amount of filings to cling to it.
- South Pole Attraction: Similarly, the South pole attracts iron filings, but the amount can vary based on the strength of the magnet and its orientation.
Equal Clinging of Iron Filings
- Observations show that the amount of filings clinging to the North pole is almost equal to that clinging to the South pole.
- This is because both poles have similar strengths, allowing them to attract comparable amounts of filings.
Why Option A is Correct
- The equal clinging of iron filings to both poles indicates that the magnet's effect is balanced.
- While there might be slight variations, the general principle is that both poles attract iron filings effectively.
Conclusion
- When analyzing the clinging iron filings, it becomes clear that the North and South poles of a magnet have a nearly equal capacity to attract iron filings, leading to the correct answer being option A.
A bar magnet is immersed in a heap of iron filings and pulled out. The...
When a bar magnet is immersed in a heap of iron filings and pulled out, the iron filings cling to both poles of the magnet. However, the distribution of filings is generally symmetrical. Both the north and south poles of the magnet attract a nearly equal amount of iron filings, as both poles produce strong magnetic fields, though they may appear slightly different due to the nature of the magnetic field lines.
Thus, the correct answer is A: North pole is almost equal to the south pole.