(corresponding to the rail tracks of conventional railways) by using electromagnetic forces between superconducting magnets on board the vehicle and coils on the ground. The following is a general explanation of the principle of Maglev. fig. 1.1 1.1.1 Magnetic Levitation The "8" figured levitation coils are installed on the sidewalls of the guideway. When the on-board superconducting magnets pass at a high speed about several centimeters below the center of these coils‚ an electric current is induced within
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AN98035 Philips Semiconductors Circulators and Isolators‚ unique passive devices Application Note AN98035 0. Contents 1. 2. 3. 4. Introduction Definitions Behaviour of ferrites Principles of operation and construction 4.1 Resonance isolator 4.2 Field displacement circulator 4.3 Phase shift circulator 4.4 Faraday rotation circulator 4.5 Ring circulator 4.6 Junction circulator 4.7 Edge guided mode circulator 4.8 Lumped element circulator 5. Charcteristics 6. Correlation of parameters of a symmetrical
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that affect with electric and magnetic fields. The electromagnetic force is carried by the photon and is responsible for atomic structure‚ chemical reactions‚ the attractive and repulsive forces associated with electrical charge and magnetism‚ and all other electromagnetic phenomena. According to Coulomb’s Law‚ we know electric charges get Coulomb force in the electric field while current receives another applied force‚ which is Ampere force when it is in a magnetic field. Overall‚ electromagnetic
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Class XI‚ Published by NCERT 2. Physics Part-II‚ Textbook for Class XI‚ Published by NCERT Class XII (Theory) One Paper Unit I Unit II Unit III Unit IV Unit V Unit VI Unit VII Unit VIII Unit IX Unit X Time: 3 Hours Electrostatics Current Electricity Magnetic effect of current & Magnetism Electromagnetic Induction and Alternating current Electromagnetic Waves Optics Dual Nature of Matter Atoms and Nuclei Electronic Devices Communication Systems Total Total Periods : 180 70 Marks 08 07 08 08 03 14 04 06
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variable gap magnet there were two small magnetic disks. One arm of the magnet was unscrewed and removed from its housing. A meter stick was placed on the and the arm was on its side parallel to the meter stick. The Gauss-Tesla meter was used to measure the field strength of the magnet. The probe attached to the meter was perpendicular to the meter stick. There were 4 steps to this process: a. The field strength was measured with the probe flat against the magnetic disk b. The probe was moved one centimeter
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First‚ limonite beneficiation machine ( limonite dry magnetic separator ) ‚ a high magnetic field equipment ‚ equipment used for low-grade weakly magnetic ferrous metal dry limonite ore dressing equipment ( limonite dry magnetic separator ) ‚ can increase the disposable metal ore grade 5-18 . beneficiation machine device technology is mature ‚ reliable‚ stable performance ‚ advanced technology‚ after more than 1‚000 customers have achieved good economic returns‚ users generally agreed that: limonite
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converter has inherent advantages such as zero voltage switching (ZVS) or zero-current switching (ZCS) of the switches‚ high-voltage gain‚ minimum circulating current and high efficiency. Keywords: Artificial heart—Transcutaneous energy transmission—Magnetic field immunity of the system. Introduction: With the rapid development of life science and bio-engineering‚ the research of implanted medical device‚ especially the totally artificial heart (TAH)‚ has made great progress‚
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and grinders‚ and in other industrial applications. Rotating Stator Field. The stator of a three-phase induction machine contains a set of windings to which three-phase electrical power is applied. The stator field can be visualized as a set of north and south poles rotating around the circumference of the stator. (North stator poles are where magnetic flux lines leave the stator‚ and south stator poles are where magnetic flux lines enter the stator.) Because north and south poles occur in pairs
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and the other of manganin‚ have the same resistance. Which one will be longer? 3. What is the SI unit of magnetic flux? 4. Name the series of hydrogen spectrum which has least wavelength. 5. Why a transistor cannot be used as a rectifier? 6. Give two properties of electric field lines. Sketch them for an isolated positive point charge. 7. A conducting loop is held stationary normal to the field between the poles of a fixed permanent magnet. By choosing the magnet sufficiently strong‚ is it possible
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charged equally and placed 1.8 cm apart. When released‚ they begin to accelerate at 245 m/s2. What is the magnitude of the charge on each sphere? 2. For what electric field strength would the current in a 2.0 mm diameter nichrome wire be the same as the current in a 1.0 mm diameter aluminum wire in which the electric field strength is 0.0095 N/C? [Conductivity of Aluminum = 3.5 x 107Ω -1m-1 and conductivity of Nichrome = 6.7 x 105Ω -1m-1] 3. What is the escape speed of an electron
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