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... Example: Levitating a wire Two wires, each having a weight per units length of 1.0x10-4 N/m, are strung parallel to one another above the surface of the Earth, one directly above the other. The wires are aligned north-south. When their distance of separation is 0.10 mm what must be the current in e ...
... Example: Levitating a wire Two wires, each having a weight per units length of 1.0x10-4 N/m, are strung parallel to one another above the surface of the Earth, one directly above the other. The wires are aligned north-south. When their distance of separation is 0.10 mm what must be the current in e ...
Lesson Plan
... While students may not be aware of atoms and electrons, they can easily grasp the concept of areas within the metal lining up within one another. When the areas (i.e. magnetic domains) are no longer aligned, the temporary magnet is no longer a magnet. In permanent magnets, the magnetic domains are a ...
... While students may not be aware of atoms and electrons, they can easily grasp the concept of areas within the metal lining up within one another. When the areas (i.e. magnetic domains) are no longer aligned, the temporary magnet is no longer a magnet. In permanent magnets, the magnetic domains are a ...
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... Temporary magnets are easy to magnetize but lose their magnetization easily. Permanent magnets are difficult to magnetize but retain their magnetization for a long time. 5. What is a domain and in which materials are they present? In materials such as iron, nickel, and cobalt groups of atoms are in ...
... Temporary magnets are easy to magnetize but lose their magnetization easily. Permanent magnets are difficult to magnetize but retain their magnetization for a long time. 5. What is a domain and in which materials are they present? In materials such as iron, nickel, and cobalt groups of atoms are in ...
Electricity and Magnetism - Unit 1
... In order for loads (like the lights in this classroom) to work, the switch needs to be closed to allow charges to flow through. If a switch is open, the load will not work. ...
... In order for loads (like the lights in this classroom) to work, the switch needs to be closed to allow charges to flow through. If a switch is open, the load will not work. ...
PHY 142L Spr 2016 Lab 4
... create forces on an intermittent current in a spinning loop of wire. It stands to reason (by Newton’s Third Law) that we should be able to use an intermittent (or alternating) current to create forces on a magnet and get it to spin. So let’s see if we can make a magnet spin by manipulating the curre ...
... create forces on an intermittent current in a spinning loop of wire. It stands to reason (by Newton’s Third Law) that we should be able to use an intermittent (or alternating) current to create forces on a magnet and get it to spin. So let’s see if we can make a magnet spin by manipulating the curre ...
Electricity and Magnetism
... atoms that all have magnetic fields that are lined up in the same way ...
... atoms that all have magnetic fields that are lined up in the same way ...
Superconducting magnet
A superconducting magnet is an electromagnet made from coils of superconducting wire. They must be cooled to cryogenic temperatures during operation. In its superconducting state the wire can conduct much larger electric currents than ordinary wire, creating intense magnetic fields. Superconducting magnets can produce greater magnetic fields than all but the strongest electromagnets and can be cheaper to operate because no energy is dissipated as heat in the windings. They are used in MRI machines in hospitals, and in scientific equipment such as NMR spectrometers, mass spectrometers and particle accelerators.