- What are the opposite ends of a magnet called?
- How do magnetic fields combine?
- Do magnets get stronger if you stack them?
- How does a magnet respond when brought close to other magnets?
- Which magnet is the strongest?
- Do stronger magnets produce more electricity?
- Can a magnet pick up gold or silver?
- Why are magnets stronger at the ends?
- Are 2 magnets stronger than 1?
- How can an iron nail be magnetized permanently?
- How long will a magnet stay magnetized?
- What are the 7 magnets?
- What makes a rare earth magnet?
- Why are nails attracted to magnets?
- Will a nail be attracted to either pole of a magnet explain what is happening inside the nail when it is placed near the magnet?
What are the opposite ends of a magnet called?
Magnets can also attract each other, but only if they face in opposite directions.
A magnet has two ends called poles; one end is the north pole and the other is the south pole.
A north pole will attract a south pole; the magnets pull on each other..
How do magnetic fields combine?
Near the poles they are closer together than those further away, because the magnet is strongest near the poles. When magnets are close together, with their fields overlapping, the fields combine to produce a resultant field which acts in one direction at any given point.
Do magnets get stronger if you stack them?
By adding one magnet on to the other, e.g. stacking, the stacked magnets will work as one bigger magnet and will exert a greater magnetic performance. As more magnets are stacked together, the strength will increase until the length of the stack is equal to the diameter.
How does a magnet respond when brought close to other magnets?
1) When two magnets are brought near each other, like poles repel; opposite poles attract. We like to represent this force effect of a magnet on iron-like objects with a concept called magnetic field. …
Which magnet is the strongest?
neodymiumThe strongest permanent magnets in the world are neodymium (Nd) magnets, they are made from magnetic material made from an alloy of neodymium, iron and boron to form the Nd2Fe14B structure.
Do stronger magnets produce more electricity?
You will get a stronger EMF if you have a stronger magnetic field or make the magnetic field change more quickly because you will have greater flux which will generate greater force on the electrons. … Since electric power is just EMF x current, you also get a bigger power this way.
Can a magnet pick up gold or silver?
Like gold, silver isn’t attracted to a magnet. There may even be other metals like copper, platinum, or nickel mixed with the gold to give it different colors. They also make it harder so it doesn’t bend or scratch.
Why are magnets stronger at the ends?
For a magnet, the flux lines repel each other so the field will be weaker at the sides. But they are concentrated at the poles, where they originate, so the field is stronger. Air is a poor conductor of flux. To get a similar magnetic field from the solenoid, we have to add a iron core.
Are 2 magnets stronger than 1?
Why? Two magnets together will be slightly less than twice as strong as one magnet. When magnets are stuck entirely together (the south pole of one magnet is connected to the north pole of the other magnet) you can add the magnetic fields together.
How can an iron nail be magnetized permanently?
Prolonged Contact With a Magnet Often made of hard steel, permanent magnets retain their magnetism once they’ve been magnetized. … Though it will lose its magnetism once it breaks contact with the magnet, very long exposure, such as months of contact, will permanently magnetize the nail.
How long will a magnet stay magnetized?
How long will a magnet stay magnetized? Sintered Nd-Fe-B magnets will remain magnetized indefinitely. They experience a minuscule reduction in flux density over time. As long as their physical properties remain intact, neodymium magnets will likely lose less than1% of their flux density over 100 years.
What are the 7 magnets?
What are the different types of magnets?Neodymium iron boron (NdFeB)Samarium cobalt (SmCo)Alnico.Ceramic or ferrite magnets.
What makes a rare earth magnet?
Rare earth magnets are the strongest permanent magnets available and have significantly higher performance than ferrite (ceramic) and alnico magnets. There are two types of rare earth magnet materials – Neodymium (Nd-Fe-B) and Samarium Cobalt (SmCo). … These magnets tend to be brittle and are vulnerable to corrosion.
Why are nails attracted to magnets?
The nail will stick to the bar magnet because it will become magnetized. The presence of the nearby north pole rearranges the magnetic domains inside the steel so that their south poles all point toward the north pole of the permanent magnet. As a result, the other end of the nail becomes a north pole.
Will a nail be attracted to either pole of a magnet explain what is happening inside the nail when it is placed near the magnet?
Yes, a nail will be attracted to either pole of a magnet. The magnet causes the boundaries between magnetic domains to move slightly, giving a net magnetic field to the nail. path If the nail is near the othermagnetic pole then different magnetic domain boundaries move.