Electromagnet Essays

  • Magnets and Electromagnets

    1030 Words  | 3 Pages

    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

  • Factors that Affect the Strength of the Electromagnet

    1566 Words  | 4 Pages

    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'

  • Investigating the Strength of Electromagnets

    955 Words  | 2 Pages

    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

  • The Effect of the Number of Coils on an Electromagnet On Its Strength

    925 Words  | 2 Pages

    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

  • The Factors That Affect the Strength of an Electromagnet

    509 Words  | 2 Pages

    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

  • What Affects the Strength of an Electromagnet?

    853 Words  | 2 Pages

    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

  • The Effect of Increasing Number of Turns in a Coil on an Electromagnet It Is Capable of Holding

    4476 Words  | 9 Pages

    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

  • Importance Of Electromagnet

    1067 Words  | 3 Pages

    An electromagnet is a magnet that is powered by electricity. Electromagnetism can be found in our daily lives. Driving to school or work? An electromagnet can be found in the cars’ engine. Hungry and want a snack? Electromagnets can be found in blenders, microwaves, ovens, toasters, toaster ovens, dishwashers, and electric can openers. Need to do your hair? Hair dryers, straighteners, and curling irons all have electromagnets in them. Electromagnets can also be found in junk yards on the cranes that

  • Current Technology on Winding Linear Generators

    897 Words  | 2 Pages

    Current Technology on Winding Linear Generators Abstract This paper is an overview of the materials and winding technology that is currently used on today’s linear generators. It contains information on the types of wire used as well as the epoxy used to hold the coil windings in place. Furthermore, it contains information on the possible orientations that the coils can have with respect to the permanent magnets. Introduction Linear generators/motors have been around since the early

  • Essay On Electromagnet

    1516 Words  | 4 Pages

    1. What is an electromagnet? An electromagnet is a magnet that is created using an electric current, created by electricity. Since electricity can be turned on and off, so can an electromagnet. It can even be weakened or strengthened by decreasing or increasing the current. Electromagnets are created by having an iron core wound with a conductor carrying current. The strength of the electromagnet depends upon the amount of current passing through the conductor. Also the current can be easily stopped

  • Active vs. Passive Magnetic Bearings

    1669 Words  | 4 Pages

    Introduction A magnetic bearing is a type of bearing that holds up a load using magnetic levitation. Scientists first discovered the magnetic effects in magnetic minerals in 500B.C. In the late 20th century, scientists began developing ways where this magnetic effect could be implemented into a bearing, creating magnetic bearings. Today, magnetic bearings can be found in many applications where no physical contact is required or extreme environmental conditions exists, including very high and low

  • Understanding Electric Motors

    805 Words  | 2 Pages

    MOTOR BASICS BASIC COMPONENTS * Armature - Sometimes called a rotor. This is the part that spins. The armature can be either a permanent magnet or an electromagnet. * Stator - This is the part that doesn't move. The rotor spins in the magnetic field contained in the stator. HOW WORKS A MOTOR? The force that that turns the armature comes from the magnetic field of the armature trying to line up with the external magnetic field of the stator. This force is called torque. This

  • Electromagnetism Experiment

    1064 Words  | 3 Pages

    with a question: Will increasing current in an electromagnet increase the power of the electromagnet? The electromagnet we will be making is a very primitive one compared to that of the complexity of modern electromagnets found in machinery, but the way it works is almost identical. Electromagnetic technology is extremely complex and because it is an electromagnet, the higher the current, the stronger it becomes, and with this an electromagnet can become incomprehensively strong. Such an example

  • Cardiac Rhythm Management Devices

    1591 Words  | 4 Pages

    Introduction Magnetic materials are categorised as either hard or soft. A soft magnet material is easy to magnetise/demagnetise, whereas hard magnetic materials retain their magnetic properties after being magnetised. Permanent magnets are made up of hard magnetic materials which is able to create its own persistent magnetic field once magnetised. They can be made in different sizes and strength and thus, making them implantable into the body without anatomical restriction. Different kind of magnets

  • Maglev Trains Are Better Than Conventional Trains

    2039 Words  | 5 Pages

    There are many uses for magnets. One of the more interesting uses of magnets is how they are used to both suspend, and propel trains. In this day and age, there are not many vehicles that can match the performance of an airplane, in terms of being able to transport a large number of passengers in such a short amount of time. The average train has the ability to carry a large number of passengers, but is not as good when the need for speed arrives. Maglev trains are a solution to this problem

  • Essay On Magnets

    1373 Words  | 3 Pages

    complicated. In order for a metal object to be transformed into a magnet its internal component atoms must be aligned properly - all heading in the same direction like in the picture below, otherwise it will be weak or will not work at all! Electromagnets what are they? An ... ... middle of paper ... ...tractant to the voice coil. The player gives a certain orientation of polarity and intensity to send to the voice coil, when these polarities are changed the magnet simply attracts the whole

  • Headphones and Nathaniel Baldwin

    1051 Words  | 3 Pages

    From the roaring twenties, through the hippie seventies, until today music has altered the natural lifestyle of humans and what better way to listen to music then through compact headphones. Overtime, headphones have evolved from big over-ear headphones to smaller compact ones. Headphones have brought about an extreme diversity of music throughout different cultures. The first headphones were in vented by a man who goes by the name of Nathaniel Baldwin. He built the first headphones back in 1921

  • Maglev Trains

    1759 Words  | 4 Pages

    train to levitate and to fly through the air. Ferromagnets on the underside of both of both the track’s ledges attract electromagnets on the wrap-around-the-track part of the train that is adjacent to the ferromagnets. A computer controls the amount of current flowing through the electromagnets in order to keep the train at a constant 1 cm from the track (#5). These electromagnets are powered by onboard batteries that are charged by linear generators that convert motion into electricity. In addition

  • Applications of Electricity and Magnetism in the Future

    911 Words  | 2 Pages

    Essentially every single device that humans use to make their life easier can be greatly attributed to the field of physics for its inception. The laws of physics govern everything that we use, see, and observe life as we know it would not be possible without it. Multiple branches of physics exist, but one stands out as the branch that has the most promise to deliver devices well beyond even our wildest imagination, electricity and magnetism. Someone who has not been educated a great deal on the

  • What Is Magnetism?

    1123 Words  | 3 Pages

    Magnetism is a physical phenomenon which is mediated by magnetic fields. Elementary particles give rise to magnetic fields by using electric currents and intrinsic magnetic moments which interact with other electric currents and magnetic moments. To some extent every material is influenced by magnetic fields. Some materials, known as permanent magnets, have persistent magnetic moments which interact with external magnetic fields resulting in attractive or repulsive behavior. These materials have