0
Could a electromagnet use a nickel core in the coil of a wire instead of iron?
Wiki User
∙ 10y ago
It is made of a "soft" metal such is iron because it is magnetised easily and demagnetised easily.
Electromagnets are said to be temporary magnets because their magnetism can be controlled ie. attraction or repulsion force can be controlled by switching on and off the current which passes through it. That is, electromagnet can be turned on and off as any other electrical device.
If some "harder" metal such as steel is used than it can cause the problem because steel is hardly magnetised and it also demagnetises hardly, so it is not efficient to use.
Note! Only ferro-magnetics (materials which can be attracted by a magnet) can be used as a core. Those are iron, cobalt, nickel and steel. But among these iron is almost always used because it is the most suitable core.
Wiki User
∙ 13y ago
Wiki User
∙ 10y agoYes. An electromagnet requires an electric charge to be run through it. Because Nickel is a metal, it will conduct that electricity and allow the magnet to work. Iron is typically used because it is more conductive than Nickel is. Iron is also more common, and much cheaper.
Wiki User
∙ 10y agoThe core of an electromagnet is made out of soft iron. 'Soft' iron, is iron that does not readily hold onto magnetism. It will only focus the field when current is switched on through a surrounding coil.
The point of being an electromaget is that it can be turned off, and not be a magnet.
Wiki User
∙ 14y agothe center of an electromagnet is called a prothene
Wiki User
∙ 15y agoThe type of Electromagnets used in Scrapyards usually have an Iron core. Although the ones for motors and Alternators, usually have a Steel core.
Wiki User
∙ 11y agono
Add your answer:
Earn +20 pts
Two ways to increase the strength of an electromagnet?
-- Increase the current (amperes) flowing through the coil of wire that surrounds the electromagnet. -- Increase the number of 'turns' of wire in the coil.
What is the nail in an electromagnet?
The nail in an electromagnet is the core of the electromagnet. It is there to provide the magnetic lines of force a "highway" to get from one end of the coil to the other end through the middle of the coil. The magnetic lines of force "like" the nail because it is a ferromagnetic material. They can travel through it very easily - and they do! The nail also provides the "working end" of the electromagnet. The magnetic field lines emerge from the nail, and then act on what is there. If you are, say, doing a separation experiment removing steel tacks that are mixed in with small brass nails (brads), the tacks will stick to the end of the nail at the "working surface" or the pole of the electromagnet.
How can the strength of an electromagnet be increased or decreased?
the current from the battery controls the strength of the electromagnet. Adjusting the voltage will also adjust the current as will adjusting the resistance in accordance with Ohm's Law. Current= voltage/resistance
What happens to the strength of your electromagnet if you use more turns of wire?
Answer you can increase the strength of an electromagnet by: 1) Increasing the current flow 2) Increasing the number of coils 3) Passing an 'iron core' through the coil of the electromagnet
What is stronger an electromagnet with 20V and 5A or one with 5V and 20A?
The strength of an electromagnet depends on the current through the coil andthe number of turns in the coil. The voltage across the coil doesn't matter at all.So IF both of your electromagnets have the same number of turns in their coils,then the one with 20A of current is stronger than the one with 5A of current.If they have different numbers of turns in their coils, then we need more informationbefore we can decide which one is stronger.
How does a coil act?
a coil acts as an electromagnet.
Could you make an electromagnet by wrapping a coil around a wooden core?
It can, it just wouldn't be permiable.
What is the relationship between the stength of an electromagnet and the number of turns in the coil?
As the number of turns in the coil increases, the strength of the electromagnet increases.
What are the arrangement of moving magnets and wire coil called?
electromagnet
What does a electromagnet have that a bar magnet does not have?
The bar magnet and the electromagnet act identical. The difference being a electromagnet is a coil of wire that has a power source connect to both ends, this energizes the coil with an electromagnetic field.
How can you strengthen an electromagnet?
make an electromagnet stronger by doing these things: * wrapping the coil around an iron core * adding more turns to the coil * increasing the current flowing through the coil.
Strong temporary magnet formed when a current is passed through a coil of wire?
A magnetic field.
What type of magnet is created when electric current flows through a coil wire?
electromagnet
Is the core of an electromagnet a piece of steel in the center of the coil?
no
A coil of wire with an electric current in it is called?
electromagnet
Two ways to increase the strength of an electromagnet?
-- Increase the current (amperes) flowing through the coil of wire that surrounds the electromagnet. -- Increase the number of 'turns' of wire in the coil.
What has a wire-wrapped core?
A coil of wire or a coil in the shape of a cylinder is a typical shape for an electromagnet (or a solenoid). The strength of the magnetic field of an electromagnet can be increased significantly if the coil is wrapped around an iron core. This configuration may be called an inductor when used as an element of an electrical circuit.
