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Free Electromagnet Essays and Papers

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    Electromagnets

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    Electromagnets are used for anti-shoplifting systems, junkyard pick up magnets, TV’s, loud speakers, and other devices. They are used to pick up heavy loads of metal, detect metals in tags for shoplifters, TV’s, and speakers. An electromagnet’s power in attracting other metals depends on the strength of the coil (solenoids), the electricity source provided to power the electromagnet, and size of the nail. Electromagnets are magnets that use electricity for a magnetic field connected to the coil.

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    Magnets and Electromagnets

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    the metal in the magnet. With the world’s constantly changing technology, electromagnets have been evolved from magnets and are more useful than a regular magnet but in order for an electromagnet to work, an electric current needs to be present (http://saxonhomeschool.hmhco.com/ha/Resources/saxonhomeschool/Holt_ST_PhysSci_Samp.pdf). The following questions that need to be addressed when learning about magnets and electromagnets are: 1. What is a magnet? 2. What is the cause of magnetism? 2. What

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    Electromagnets Investigation Planning. Electromagnets could be made stronger by varying some factors of the electromagnets. The different factors that affect the strength of electromagnets are the temperature, amount of current passed through the wire, the length of the core, the thickness of the wire used for the coils and the number of turns of the electromagnet. An electromagnet can be made by coiling up a length of wire around a piece of metal and passing an electric current through

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    Investigating the Strength of Electromagnets Aim: To investigate into the effect that changing the number of turns on the coils has on the strength of an electromagnet. Background Information: If an electric current flows through a coil of wire a magnetic field is formed around the coil, creating an electromagnet. This is a temporary magnet, which can be switched off. There are three ways in which you can increase the strength of an electromagnet: Ÿ Increase the number of turns

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    Strength of the Electromagnet Aim: To investigate factors which affect the strength of the electromagnet and make the strongest electromagnet possible. Apparatus: · Iron Rod · Leads · Power Pack · Crocodile Clips · Insulated Wire · Iron Nails · Voltmeter · Plastic Beakers · Electronic Balance Hypothesis: I expect the strongest electromagnet to have a 'soft'

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    Coils on an Electromagnet On Its Strength Aim: - To establish whether a variation in the number of coils will affect an electromagnet's strength. Scientific Knowledge: - The concept of electromagnets is fairly simple. An iron nail wrapped in a series of coils of insulated wire and then connected to a battery, will enable the nail to pick up paper clips. This is because the current emitted from the battery to the coils magnetises the nail. This is known as an electromagnet. The current

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    The Factors That Affect the Strength of an Electromagnet Planning What I am trying to find out? My aim is to find out the factors that affect the strength of an electromagnet. What I am going to do? Equipment list q Power pack q (Soft) Iron core q Wire q Paper clips [IMAGE] Method In my investigation I am going to see how many paper clips an electromagnet can pick up, varying how many times a wire is wrapped around an iron core. 1. I will connect

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    What Affects the Strength of an Electromagnet? Aim What is the effect of increasing the current and increasing the number of coils when picking up paper clips? Definition First of all, an electromagnet has to be defined. An electromagnet can also be called a Solenoid, Which consists of a core of iron and then wire is wrapped round it. Prediction I predict that as the current carried in the wire gets stronger, so will the magnetic field surrounding the electromagnet. Therefore, I think that the amount

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    The Effect of Increasing Number of Turns in a Coil on an Electromagnet It Is Capable of Holding Introduction In this investigation I aim to find out what effect increasing the number of turns in a coil on an electromagnet will have on the strength of the electromagnet, and the weight it is capable of holding. I predict that the higher the number of turns there is on the core the higher the amount of weight the magnet will hold. Also I predict that, if I double the amount of turns in

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    For the last couple of years people have been concerned about the waste that has come out of cars, trains planes etc. There are some solutions; electric cars can get there energy from electricity, and the electricity can come from the Sun or Hydroelectric Plants to make the energy renewable. Another solution is vegetable oil gas, for it can be grown and is natural too. But there is one solution that can come from renewable sources, and eliminates friction. This is magnetic levitation or maglev

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