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Why iron filling line themselves up around the magnet?
because iron fillings is a good conductor of magnets , the force of magnets will tend to create a pattern line.
Does an MRI create images by combining high-frequency ultrasonic waves and strong magnets?
Yes
How does breaking cold pack release cold?
the chemicals inside react to create the cold
What are some names of small magnets?
Refrigerator magnets, car magnets, neodymium magnets are names of small magnets.
Why do you use helium to super-cool magnets and why not use liquid nitrogen?
Liquid nitrogen is not cold enough to supercool some superconducting magnets to make that magnet's superconductive properties emerge. It takes something like liquid helium to do that.
Are cold magnets stronger than hot magnets?
yes
Do hot or cold magnets have more power?
Cold. If magnets get overheated, they can cease to work all-together.
Which temperature of Magnets affects the magnets strength?
cold temperature affects the magnets strength by making it stronger
Can two magnets create a vacuum?
No
Which materials can magnets be made from?
Iron, nickel, and cobalt are used to create permanent magnets.
How do refrigerators use magnets?
Refrigerators use magnets on the door the keep the cold air in, Same with the freezer door.
Do magnets make electricity?
No. Magnets create an electric feild, not electricity.However, when you spin a magnet inside a coil of wire (or you can spin the coil of wire instead), you will create an electrical current.
Why are magnets used in refregeraters door?
To create an airtight seal.
How do you power a fan with magnets?
You can power a fan by putting magnets on all the flaps that make the air then put another magnet near it to make it move and the repel of the magnets will create movement.
How do you create magnets?
rub metal in one direction repeatadly on a magnet
Can refrigerator magnets cause cancer by altering food composicion?
Hmmm Maybe fridge magnets can cause cancer but the forty times stonger magnet in the motor that keeps it cold is fine. plus I'm sure the magnets that hold the door closed have no effect. and don't forget everything in your home with wires and motors and speakers has magnets and magnetic fields. By the way since magnets cause cancer we have to leave the universe. All ironcore planets that spin create a magnetic field, that's why compasses work.
Do bar magnets use conductive wire and electricity to create a magnetic field?
Bar magnets are already magnetized. They don't need to add wire and electricity.
