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Wide tunable CMOS active inductor
Wide tunable CMOS active inductor

Model Viva Questions for “Fundamental of electrical Engineering”
Model Viva Questions for “Fundamental of electrical Engineering”

Comparison of the main types of fault
Comparison of the main types of fault

... voltage, current, torque and stator/rotor iron losses results, Fig. 3. From now on, the reader attention will be focused only on the torque and iron loss mean values (Fig. 4-Fig. 6) in order to have a strong comparison of the studied cases (discussions on wave ripples not presented here). All the st ...
Instructions for use and maintenance
Instructions for use and maintenance

MF1 Multi-Field Magnetic Speakers
MF1 Multi-Field Magnetic Speakers

... bandwidth and deliver more power at lower frequencies than our electrostatic speakers. They are well-suited for laboratory species with lower frequency hearing and for noise exposure studies. A detachable tip allows them to be configured for either free- or closed- field use. The closed-field config ...
Advances in Natural and Applied Sciences
Advances in Natural and Applied Sciences

... between two or more coils with the same frequency and same size. Most electric power networks are designed and implemented in three phases. Because the transmission and distribution of electrical energy in the form of three-phase economically more advantageous and has a higher efficiency, Some netwo ...
Charging magnet for the floating coil of LDX
Charging magnet for the floating coil of LDX

... automatically. The vacuum can surrounds the thermal shield. The bottom position of all electric, instrumentation, and cryogenic feedthroughs is dictated by the restricted space at the C-cryostat top. The cryostat has two liquid helium supplies: one to the helium vessel bottom for the initial cooling ...
30 - hi.is
30 - hi.is

Electromagnetic Induction
Electromagnetic Induction

Catalogue voice coil actuators
Catalogue voice coil actuators

... The magnet assembly of VM series is designed for good volumetric efficiency and useful linear stroke, these characteristics may be at the expense of some loss of linearity. High Energy Density magnets drive the material of the voice coil pot (housing) close to magnetic saturation to develop the str ...
AP Physics Free Response Practice – Torque – ANSWERS
AP Physics Free Response Practice – Torque – ANSWERS

... measuring both fields and the earths field was acting against the wires field. If the earth’s field was not present, the meter reading would have been larger. So each Field data point should be shifted up by the amount that the earths field had reduced it reading, as shown. ...
Understanding Electronics Components
Understanding Electronics Components

Rogowski Coil for Current Measurement in a Cryogenic Environment
Rogowski Coil for Current Measurement in a Cryogenic Environment

... between the current to be measured and the sensing circuit, which is undesirable at deep low temperature. Current sensors based on Faraday effect, like fiber-optic current sensor, are especially useful in high voltage systems because of the inherent electrical isolation, and in systems with high ele ...
Faraday`s law, Lenz`s law, and conservation of energy
Faraday`s law, Lenz`s law, and conservation of energy

... Figure 3 shows a graph of the total flux N⌽ through the coil as a function of time, calculated by integrating the graph of the potential difference with time for the open circuit. Here N is the number of turns on the coil, and ⌽ is the flux through a single turn. Straight lines have been constructed ...
Electric Circuits and Electromagnetism Review
Electric Circuits and Electromagnetism Review

... In this circuit, we have three resistors and two batteries, one on either side of junction b. We can’t say that all the resistors are in series with each other, nor parallel, because of the placement of the batteries. If we want to find the current in and voltage across each resistor, we must use Ki ...
Inductance
Inductance

high-tuning range ferrofluid-based solenoid
high-tuning range ferrofluid-based solenoid

... ferrofluid liquid of 8 µm x 8 µm and 18 µm x 18 µm respectively, having an inductance values of 6.6 nH and 15.2 nH and quality factor of 13 and 25 at a frequency of 2.45 GHz, respectively. This result shows that the inductance values and quality factor will increase correspondingly to the increase o ...
Analogue meters
Analogue meters

... A wattmeter combines voltage and current measurements to achieve a measurement of the power delivered to a circuit. The electrodynamometer type wattmeter consists of a moving coil and a fixed coil. The moving coil is the voltage or potential coil, and like a voltmeter it is connected across the supp ...
Document
Document

Stresa, Italy, 26-28 April 2006 SCALING EFFECTS FOR
Stresa, Italy, 26-28 April 2006 SCALING EFFECTS FOR

armature winding
armature winding

... simplex winding. The voltage induced in each path is assumed to both to be same and should be if the reluctance of each magnetic path is the same, so that the lines of flux cut by each inductor of each path are the same.  However wear of the bearings or deflection of the armature shaft may cause th ...
Applications To Optical Fiber and Integrated Optics
Applications To Optical Fiber and Integrated Optics

PHYSICS (Theory)
PHYSICS (Theory)

Lesson Plan PDF - TryEngineering
Lesson Plan PDF - TryEngineering

... proportion of iron. Hence this is known as a “ferrous” metal, from the Latin word ferrum, meaning iron. Most other common metals, such as copper, aluminum and chromium etc., cannot be magnetized to more than a very small extent, and as soon as the magnetizing force is removed, they relapse back into ...
doc
doc

... Assume that maximum air gap flux density, which occurs at the pole center line (α=θ), is Bmax. Assume also that flux density B varies sinusoidally around the air gap (as illustrated in Figs. 9 and 10). Then, for a given θ, B( )  Bmax cos(   ) (A-1) Keep in mind that the flux density expressed ...
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Magnetic core

A magnetic core is a piece of magnetic material with a high permeability used to confine and guide magnetic fields in electrical, electromechanical and magnetic devices such as electromagnets, transformers, electric motors, generators, inductors, magnetic recording heads, and magnetic assemblies. It is made of ferromagnetic metal such as iron, or ferrimagnetic compounds such as ferrites. The high permeability, relative to the surrounding air, causes the magnetic field lines to be concentrated in the core material. The magnetic field is often created by a coil of wire around the core that carries a current. The presence of the core can increase the magnetic field of a coil by a factor of several thousand over what it would be without the core.The use of a magnetic core can enormously concentrate the strength and increase the effect of magnetic fields produced by electric currents and permanent magnets. The properties of a device will depend crucially on the following factors: the geometry of the magnetic core. the amount of air gap in the magnetic circuit. the properties of the core material (especially permeability and hysteresis). the operating temperature of the core. whether the core is laminated to reduce eddy currents.In many applications it is undesirable for the core to retain magnetization when the applied field is removed. This property, called hysteresis can cause energy losses in applications such as transformers. Therefore, 'soft' magnetic materials with low hysteresis, such as silicon steel, rather than the 'hard' magnetic materials used for permanent magnets, are usually used in cores.
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