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An electromagnet is made by wrapping coiled wire around a piece of metal. When a current is applied, it creates a magetic field. The main advantage is that an electromagnet can be turned off by breaking the circuit. That's how those big magnet cranes at junkyards can let go of the metal. You can easily make a fun electromagnet project that kids love. Just coil a wire around a bolt, and hook up the ends to both sides of a battery. A 6 volt flashlight battery works great. More coils means a stronger magnet.
An electromagnet can be turned on and off by controlling the flow of electricity, making it more versatile than a normal magnet. The strength of an electromagnet can also be adjusted by changing the current, allowing for more precise control. Additionally, electromagnets tend to be stronger than permanent magnets, especially at larger sizes.
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What are the benefits of using an electromagnet rather than a bar manet?
Electromagnets can be turned on and off, allowing for greater control over their magnetic strength. They are also more versatile as their strength can be easily adjusted by changing the electrical current. Additionally, electromagnets can be designed to be stronger than equivalent-sized permanent magnets.
Will a magnet float or sink?
A magnet would typically sink in water as it is denser than water and does not have the buoyancy to float.
Why does a compass spin when it is placed next to a magnet?
Because the primary purpose of a compass is to react to the magnetic field of the earth, it get affect by a nearby compass when the compass' magnetic field is stronger than that of the earth. As the magnet is moved away, the strength of its field diminishes and the compass goes back to 'normal' - pointing north.
Does a us silver dollares stick to a magnet?
No, a US silver dollar does not stick to a magnet because silver is not a magnetic metal. United States silver dollars are made primarily of silver, which is a non-magnetic metal, so they will not be attracted to a magnet.
Why are strong magnets attracted to a door magnet in a bowl of water then three metal thumbtacks?
The strong magnet is attracted to the door magnet because opposite poles attract each other - the door magnet was likely oriented to attract the strong magnet. The metal thumbtacks are not attracted to the strong magnet because the magnetism of the thumbtacks is weaker compared to the door magnet.
Can a magnet delete everything on a computer by just putting it on the outside?
No. A magnet only interfers with magnetic fields ... lots of old IBMs used magnetic memory cards and that's where the stories started. It might erase a floppy disk, but an electro-magnet does the job much better than a perminant magnet.
Why would a bar magnet pick up more paper clips than an eletromagnet?
A bar magnet can pick up more paper clips than an electromagnet because the magnetic field of a bar magnet is constant and does not rely on an external power source, whereas an electromagnet's strength depends on the current flowing through it. The bar magnet's fixed magnetic field allows it to attract more paper clips consistently, whereas the electromagnet's strength diminishes if there is a power failure or interruption.
What is the difference from a gifted student than a magnet student?
Gifted is better than magnet
What are the benefits of using an electromagnet rather than a bar manet?
Electromagnets can be turned on and off, allowing for greater control over their magnetic strength. They are also more versatile as their strength can be easily adjusted by changing the electrical current. Additionally, electromagnets can be designed to be stronger than equivalent-sized permanent magnets.
Is a electro magnet stronger than a normal magnet?
it depends on how strong the electromagnet is. you basically choose how powerful to make an electromagnet when your designing one. one used for picking up cars at a junk yard is gonna be more powerful than one used in a kitchen appliance. and "normal magnet's" is not a good term for all other types of magnets. there are lots of different types of materials that can be magnetized, all of them are stronger or weaker then the others, all of them can also be made to different strengths, and all of them lose strength over time. the usefulness of an electromagnet is that they can be turned on and off depending on whether or not they have electricity running through them. http://en.wikipedia.org/wiki/Magnet
Why is hydroelectricity better than normal electricity?
hydro electricity is better than normal electricity because it is cheaper.
What gives earth it's magnetic field?
in 1872 3 scientists dug to the earths core and implanted an electro magnet more powerful than an atomic bomb. The government kept all this secret so that no one could disrupt the magnet's current.
Why is a magnet school good?
a magnet school is a school in which talented students are selected. The purpose of a magnet school is to attract gifted and talented students toward them. Students experience a better education course than normal public schools. A magnet school is part of public schools but still it is the good one from public schools
How to make the Earth die?
The Earth’s core is protected by an invisible force field of lava and it is an electro magnetic force field made from the Earth’s core and the Sun’s core see the Earth’s core ubsobes the energy and the electro magnet lava around it creating an invisible electro magnetic forcefield protecting it from anything that will try to destroy it and it will destroy anything in less than 1 millersecond and that’s faster than the speed of light and anything else in the Universe.
Would a speaker with a larger magnet always sounds better than a speaker with a smaller magnet?
Definitely not. Sound quality depends on so many different things.
Is gear cycle better or normal?
gear cycles are better than normal cycles because gear cycles are comfotable for riding as compared to normal cycles
Why is baked eyeshadow better than normal eyeshadow?
I'm not quite sure why, but think about it: baked chips are better than normal chips too. I know this answer isn't helpful. :)
