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Why is a crane in a steelworks fitted with a large electromagnet?
Annatayo
Because they can then lift the steel easily without having to put chains and lifting gear onto it.
Wiki User
∙ 11y ago
Wiki User
∙ 8y agoThe electromagnet has two important advantages:* Electromagnets are much stronger than permanent magnets
* They can be turned on and off
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What voltage should be applied to make an electromagnet?
The strength of the electromagnet depends on the magnitude of the current in the coil around it.The voltage required is only what produces the desired current in the coil. Since the coil is nothing butwire, the resistance is quite low, and a relatively small voltage produces a relatively large current.
What types of magnets are produced by running electrical currents through a soft iron core?
temporary magnets Incorrect, it's electromagnetic.
How does a car scrap heap magnet work?
Scrap Heap MagnetUsually the kind of magnet a junkyard uses is an electromagnet. An electromagnet is simply an iron core wrapped around by copper wire. Then current runs through the wire, it becomes a very strong magnet. There are other types, but I think electromagnet is the most common for car scrap heap.
How is an electromgnet and a bar magnet different?
The bar magnet is what is termed a permanent magnet . This means that it is "always on" and can be used to do things like pick up paper clips. The electromagnet is created by winding a coil of wire about a ferromagnetic core and running a direct current through that coil. Only when the current is flowing will the electromagnet be operating. With the current switched off, the magnetic field around the coil of wire disappears, and the power of the electromagnetic disappears as well.There are some "fine points" associated with a further extension of this post, but the basic answer to the question is as written.A bar magnet is made from magnet materials and has a magnetic field at all times. An electromagnetic is not naturally magnet and only has a magnetic field when electricity is passed through it.
Is an electromagnet stronger than a permanent magnet?
Not necessarily. The key difference between a permanent magnet and an electromagnet is the a permanent magnet does not change whereas an electromagnet's magnetic feild can be altered by varying the current through it. This means that electromagnets are more useful because they can be turned on or off, turned up or down or be put in 'reverse'.
How is electromagnet the same as permanent?
An electromagnet is only magnetic while current is flowing through the coils. A permanent magnet is always magnetic, and does not need electricity. An example of an electromagnet at work is in a metal scrape yard, where a large electromagnet is used by a crane operator to lift ferrous metals into a crusher (scrapped cars, for instance). The metal drops into the crusher when the electricity is switched off by the crane operator. Therefore, they are only really similar when both are magnetised.
Is the sarus crane flightless?
No the large Sarus crane is not flightless but it is non-migratory.
How does a scrapheap magnet work?
A junkyard or recycling center may employ a large magnet crane to move metal objects and scrap.It is an electromagnet : with the power turned on, it attracts the ferrous materials to its metal disk. When the crane has reached the desired location (pile, container, or truck), the power is turned off and the magnetic attraction ceases, dropping the materials.
Is the red crowned crane a bird?
The Red-crowned Crane, Japanese Crane, or Manchurian Crane is a type of bird. It is a large east Asian crane and among the rarest cranes in the world.
How does a constuction crane work without magnets?
A construction crane uses a large hook, or a wrecking ball.
How do magnets in a crane work?
They are an electromagnet which is a wire coil wound outside a large iron core. When the coil is energized with electricity by the crane operator it creates magnetism and when the power is switched off the magnetism stops. This type of magnet is what makes a car starter engage, electrical solenoids are a version and many common household items utilize electromagnets. Trunk release on your car, etc.
What is the name of the machine that lifts shipping containers?
It is a type of large dockside gantry called a container crane or container handling gantry crane or ship-to-shore crane
What is a mobile crane and what are the uses?
A mobile crane is a cable-controlled hydraulic crane with a boom. Some uses include hauling cargo, as well as hauling large loads for construction.
What types of cranes live in North America?
The most famous North American crane is the Whooping crane. In the midwest the Sandhill Crane appears in large numbers when they migrate. Another rarer type is known as the Common Crane.
Elliot Construction has two cranes The large crane can lift up to 7 tons The small one can lift up to 6 tons How much more weight can the large crane lift than the small crane?
Up to one ton, apparently..
How do you weight a whale?
Using a crane and a very large weighing scale.
What IS Mobilization fee?
A mobilization charge is often made for large equipment, a crane for example, to compensate the crane company for the time and expense to get the crane on site, erected and ready for work. The crane company will then charge by the hour as the crane is used. Mobilization fees are often charged as well on large construction projects to compensate the general contractor or construction management company for setting up the administrative offices for the duration of the contract.
