North Magnetic Pole

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    rotating field referred to a rotor. According to Krishnan, (2010), DC motors operate through the interaction of an electric current with magnetic flux to generate a torque and rotational speed. D.C motors are of different types but they all operate…

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    Power Point Essay

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    forces in magnetic fields. This struck great interest and lead to further research. In the 1830’s, an English scientist named Michel Faraday was credited with the discovery of induced currents and the practical behind it. He first wrapped a copper wire around an iron ring. On one side of the ring, there was a battery with a switch. On the opposite side, there was a galvanometer. He noticed a strange pattern in variations in currents. This evolved into further experimentation with magnetic…

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    Iron Powder Lab Report

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    1. Existing Knowledge- Based on prior knowledge, the Sulfur and Iron powder can be separated by using a magnet. The known fact is that the Iron particles can be attracted to the Magnet because of the attraction of the opposite charges. The Magnet will pull and attract the Iron and leaving the Sulfur behind. The separation of Sulfur and Iron powder is successfully accomplished because of the property of attraction. Since Iron is a metal, it has a positive charge and one side of the magnet has a…

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    are discovering the reasons why they exist. Many believe that the reason these lights are not seen during the day is due to the strong radiation that’s given out through the day. These auroras are caused by charged particles that collide with the magnetic atmosphere. At first glance the aurora looks to be light in colour but the substorm after the first glow is a lot brighter and has a much darker colour. Yusuke Ebihara is a physicist from Japan who has been studying these northern lights. He…

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    generators create electrical energy by creating a changing magnetic field. This works by moving a copper coil in a permanent magnetic field. The induced field created in the copper coil opposes the permanent one (according to Lenz's Law). These two opposing magnetic fields create the force that resists the rotation of the coils. When the light bulb is taken out no current can flow through the coil (Faraday's Law) so no opposing magnetic field is created. Hot Plate Why didn’t the power you…

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    Explain How Motor Works

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    In this report I will explain how a motor works. Fig. 1 shows the parts of the motor. In this motor, there are two field magnets on each side coil with wire. These two field magnets always have opposite polarity. On the middle of the motor there is an armature, two commutators and two brushes. When current flow though the two brushes, one of the brushes touches commutator plate 1 and the other brushes touches commutator plate 2. Then the armature A and armature B turn in to field magnets,…

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    Magnetic therapy or magnet healing is a type of alternative medicine that have magnetic fields that generates healing powers towards a large number of diseases or conditions. These electromagnetic fields have been demonstrated to treat slow-healing fractures in the body and have shown good results towards to a few conditions. The website that has claimed to use this magnetic therapy are Skepdic.com. The claim that this complementary and alternative medicine practitioner is making goes…

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    Hannah Baker Psychology

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    Hannah Baker, from a white picket fence town with an almost perfect family, committed suicide. From being raped by a popular boy, to witnessing her friend's sexual assault, to her best friends turning their backs on her, Hannah endured countless acts of bullying, which she chronicles on 13 audio tapes that are passed around to her friends after her death. On the show, which was produced by Selena Gomez, we witness Hannah's friend, Clay Jensen, helplessly wish he had known what she was facing, so…

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    Magnet Essay

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    When a magnet is in motion near a non-magnetic conductor such as copper and aluminium eddy currents are induced in the conductor, causing a dissipative force called magnetic braking force, or a change in magnetic flux (figure 2). This force is dependent on: The size and shape of the conductor and magnet The strength of the magnet (μ) The conductors conductivity (σ_c) The distance between the conductive surface and the magnet (d) The velocity of the magnet (v) According to Faraday’s law,…

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    The mini torsion device that will be designed for this senior design project will apply a torsional load to a small cylindrical sample with a diameter of 5 mm or 6 mm. The device will need to fit under an optical microscope and will not be able to exceed the weight limits of the sample stage on the optical microscope so that Raman microscopy can be performed on the sample while it is under a torsional load. The device will also need to collect data and calculate the angle of twist of the sample.…

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