Electromagnetics in the sense of (Maxwell’s Equations) do work underwater. However, electromagnetic waves (whether radio or light) do not propagate particularly well underwater, if that is what you are asking. Blue light propagates reasonably well under water, so there is an example of wave propagation.
Will a magnet float or sink in water?
No, not really. In cold water, the magnetism changes very little. In hot water, the magnet itself becomes weaker, although the water hardly magnetizes.
Can you move water with magnets?
Water is diamagnetic – its actually slightly repelled by a magnet. However, the repulsion force is very small. So, a very powerful magnet could deflect a stream of rainwater, but the amount of deflection would be barely noticeable for common magnets, including even powerful Neodymium-Iron-Boron (NIB) magnets.
Does water affect magnets strength?
Water does not significantly affect a magnet’s strength except that small parts of some magnets may have a chemical reaction with water, so that some magnets have to be coated if they will be immersed in water for an extended period of time.
Can water be magnetic?
It doesn’t seem like it would be magnetic but it turns out water, and all matter, can exhibit magnetic properties if you put them in a big enough magnetic field. Water is slightly repelled by a very strong magnet. If you have a neodymium magnet you can test this out yourself.
How can you magnetize water?
A simple way to magnetize water is to keep two liter jugs of water on the two poles of encased disc magnets of about 3000 gausses, normally for twelve to twenty-four hours.
Do magnets work in oil?
When using water and vegetable oil, the paper clips moved through the liquid to the magnet very quickly. This is because water and vegetable oil have a low viscosity and provide very little resistance to the paperclips moving through them.
Can magnets work in space?
Magnets can be used in space. … Unlike a lot of other items you might bring to space that need additional tools or equipment to function, a magnet will work without any extra help. Magnets don’t need gravity or air. Instead, their power comes from the electromagnetic field they generate all by themselves.
Can magnets pull through liquids?
Magnets can pull through gases, like air, but they can also pull through solids and even liquids, depending on the strength of the magnet. A magnetic field is the area around the magnet where it can attract or repel things.
Can a magnet remove iron from water?
And since rust is essentially iron oxide, it tends to be magnetic, so it can be drawn back out of the water using a low-powered magnet.
Can water break magnets?
The simple answer is no. In fact, magnets are sometimes used for underwater recovery. … However, one concern is that the magnets will begin to corrode, especially if they are made of materials like neodymium. On the other hand, water has shown diamagnetic properties.
Do magnets rust?
Magnets need iron to attract, and iron rusts when exposed to oxygen and water. Rust reduces the attraction of a magnet, and often makes it unsuitable for your purpose after a short period of time. Rust could turn a magnet you plan to use for 10 years into a paperweight in a year.
Can magnets be washed?
Many washing machines are magnetic. To avoid damage to the machine or fabrics, you should wash clothing with magnets in a laundry bag on the delicate cycle (without spin-drying). Do not wash magnets hotter than 80° C, as this will cause the magnets to demagnetise.