Factors that Affect the 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' iron core; the
highest number of coils (45); the strongest voltage (10V) and current
and have the coils evenly spread across the iron rod.
The 'soft' iron core means it changes easily between being magnetised
and de-magnetised, it is perfect for electromagnets, which need to be
turned on and off. From a previous experiment, using an electromagnet,
I found out that the iron rod picked up many nails when turned on and
dropped them all when switched off but the steel rod picked few nails
up when switched on, yet held on to them even after the current was
switched off. For this experiment, the iron rod is needed. A high
number of coils provides a stronger solenoid. When current flows
through the wires it create a magnetic field, therefore with more
coils a stronger magnetic field and therefore a stronger electromagnet
would be created. A stronger magnetic field will also be created if
the size of the voltage increases, the higher the voltage means the
size of current will increase too. The stronger the magnetic field,
The proton precession magnetometer is most commonly used for land-based magnetic surveys.This magnetometer only measures the total amplitude (size) of the earth magnetic field. Usually these type of measurements are referred to as total field measurements.
In the twentieth century the medical field has seen many changes. One way that hospitals and nursing specifically has changed and implemented the changes is by pursuing accreditations, awards, and recognitions. The purpose of this paper is to understand Magnet Status and the change required by hospitals to achieve it.
For hospitals to reach their peak in the healthcare world they must work to achieve a prestigious credential by the American Nurse's Credentialing Center ( Truth about nursing). In order to receive such a credential, hospitals must fulfill a set of criteria that will take a lot of work and reform within the hospital itself. To receive magnet status hospitals have to express the fourteen forces of magnetism along with the strict list of requirements (Flores, 2007). Magnet status along with everything has its benefits along with its problems. This credential has been researched in depth, and some research feels that certain thing should be changed in order for magnet hospitals to be the best they can possible be. Lastly, there is no doubt that magnet status is of great value because of how it transforms hospitals from great to greater.
Magnets are everywhere! They are in telephones, computers, stereos, vacuum cleaners, refrigerators, washing machines, cars, compasses, TVs, VCRs, your doorbell and many other places. The earth itself is also a magnet. The Greeks discovered a mineral over 2,000 years ago that attracted things that were made of iron. This mineral was found in a part of Turkey that was called Magnesia, so they called it magnetite. A magnet is any material that attracts iron or things made of iron. All magnets have two poles, exert force on each other, and are surrounded by a magnetic field.
training. Improve work environment also contributes to financial benefits with lower injuries to nurses such as needle sticks and back injuries. Magnet organizations have to outperform national benchmarks on nurse sensitive indicators such as falls, hospital acquired pressure ulcers, central line associated blood stream infection, catheter associated urinary tract infections, and ventilator associated pneumonia, to achieve Magnet designation and to maintain it. Decrease in hospital acquire preventable incidences equates to less rejected insurance reimbursement.
Electromagnetism is creating a revolution aboard U.S. Navy ships. First the navy unveiled its first gun that utilizes this energy to accelerate projectiles earlier this year. By using electromagnetic energy, the project can be accelerated to higher speeds than a bullet in a conventional gun. It can also fire such projectiles over an impressive 100 nautical miles. Such weaponry marks the first true advancement in the actual method used to accelerate project weapons since the earliest form of primitive muskets. Certainly the speed of fire and loading of guns increased incredibly over the past century and more, but they always relied on a chemical explosion to accelerate the projectile down the barrel.
The Effect of the Number of 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 magnetizes the nail to the surface.
A tower that shoots out lighting? The Tesla coil, a great invention that brought about a new way of living. In 1850-1900, there was not many people wanting new information, people were content with anything someone in power told them. If you were confident and you wanted to be famous all you had to do is say the world is flat and give some reasons to support your claim. Here are some reasons on why the tesla coil is a great invention: One, the Tesla coil was made by a brilliant inventor, who is still talked about even after 75 years of his passing. Secondly, the Tesla coil brought in a new wave of ideas and entertainment. Finally, the mechanics behind it all is amazing.
Factors Affecting the Resistance of a Wire The aim of this experiment is to investigate one factor that affect the resistance of a wire. I will do this by performing an experiment. First I will need to identify the factors that effect resistance. There are a few factors that affect the resistance, it is determined by the properties an object has.
Temperature has a large effect on particles. Heat makes particles energized causing them to spread out and bounce around. Inversely the cold causes particles to clump together and become denser. These changes greatly F magnetic the state of substances and can also influence the strength of magnetic fields. This is because it can alter the flow of electrons through the magnet.
Magnets are stones that produce magnetic fields. The magnetic field is invisible, but is responsible for the most noticeable aspect of a magnet: the attraction of a metal object or the repulsion of another magnet. Magnets are used in common everyday household items: credit cards, TVs, speakers, motors, and compasses. A magnets strength is measured by its magnetic moment. (“Magnetism”)
of the atoms, so if there are more or larger atoms then there must be
The Physics of an Electric Motor An electric motor is a device used to convert electric energy into rotational kinetic energy. There are two different types of electric motors, and each has its own use. The different types are direct current and alternating current motors. Each of these motors will be analyzed in the following steps.
The Earth’s magnetic field is a major component to exploring the earth. The north and the south poles have always been a guide for travelers. Using compasses, the direction of the north pole and the south pole has always been provided by the magnetic force of the magnetic field. What many people do not know though is the earth’s magnetic field provides way more than that. The magnetic field, also known as the magnetosphere, protects us from all kinds of harmful substances. Some of these substances include solar wind and harmful radiation from the sun. The magnetosphere also protects the atmosphere, which protects us.
The phenomenon called electromagnetic induction was first noticed and investigated by Michael Faraday, in 1831. Electromagnetic induction is the production of an electromotive force (emf) in a conductor as a result of a changing magnetic field about the conductor and is a very important concept. Faraday discovered that, whenever the magnetic field about an electromagnet was made to grow and collapse by closing and opening the electric circuit of which it was a part, an electric current could be detected in a separate conductor nearby. Faraday also investigated the possibility that a current could be produced by a magnetic field being placed near a coiled wire. Just placing the magnet near the wire could not produce a current. Faraday discovered that a current could be produced in this situation only if the magnet had some velocity. The magnet could be moved in either a positive or negative direction but had to be in motion to produce any current in the wire. The current in the coil is called an induced current, because the current is brought about (or “induced”) by a changing magnetic field (Cutnell and Johnson 705). The induced current is sustained by an emf. Since a source of emf is always needed to produce a current, the coil itself behaves as if it were a source of emf. The emf is known as an induced emf. Thus, a changing magnetic field induces an emf in the coil, and the emf leads to an induced current (705). He also found that moving a conductor near a stationary permanent magnet caused a current to flow in the wire as long as it was moving as in the magnet and coiled wire set-up.