25-1 Capacitance Coaxial cable
... Dissemination or sale of any part of this work (including on the World Wide Web) will destroy the integrity of the work and is not permitted. The work and materials from it should never be made available to students except by instructors using the accompanying text in their classes. All recipients o ...
... Dissemination or sale of any part of this work (including on the World Wide Web) will destroy the integrity of the work and is not permitted. The work and materials from it should never be made available to students except by instructors using the accompanying text in their classes. All recipients o ...
EN14 107 Basics of Electrical and Electronics & Communication Engg.
... results in the current flowing in the rotor winding. This is irrespective of the rotor type used − cage or wound one, with the cage rotor, with the bars short-circuited by two end-rings, is considered equivalent to a wound one The current in the rotor bars interacts with the air-gap flux to develop ...
... results in the current flowing in the rotor winding. This is irrespective of the rotor type used − cage or wound one, with the cage rotor, with the bars short-circuited by two end-rings, is considered equivalent to a wound one The current in the rotor bars interacts with the air-gap flux to develop ...
Experiment no. 2 NO LOAD AND LOAD TEST ON A DC SHUNT
... 2) Now close switch S1 and slowly increase the voltage supplied to 3-phase induction motor using autotransformer until it rotates at the rated speed of DC machine. 3) Close switch, S2 and gradually increase the excitation current through field to its maximum admissible value and then slowly decrease ...
... 2) Now close switch S1 and slowly increase the voltage supplied to 3-phase induction motor using autotransformer until it rotates at the rated speed of DC machine. 3) Close switch, S2 and gradually increase the excitation current through field to its maximum admissible value and then slowly decrease ...
Diodes
... Reverse bias the diode with ~-20 V and observe the reverse current (should be about 0.2 A). Touch a hot soldering iron to a metal lead close to the diode and note the percentage change in reverse current. There is a big effect because the minority carriers that transport the reverse current are the ...
... Reverse bias the diode with ~-20 V and observe the reverse current (should be about 0.2 A). Touch a hot soldering iron to a metal lead close to the diode and note the percentage change in reverse current. There is a big effect because the minority carriers that transport the reverse current are the ...
Harvest human kinetic energy to power portable electronics†
... magnet φm will affect the power output. Fig. 5 shows the power output performance with respect to the magnet sector, where rm changes in each curve from 15 mm to 25 mm with intervals of 2 mm. It is shown that a larger outer radius of the magnet results in more power output. In other words, the bigge ...
... magnet φm will affect the power output. Fig. 5 shows the power output performance with respect to the magnet sector, where rm changes in each curve from 15 mm to 25 mm with intervals of 2 mm. It is shown that a larger outer radius of the magnet results in more power output. In other words, the bigge ...
Series and parallel Connection of capacitors
... as the amount of charge in Coulomb required to raise the potential of the conductor by 1 Volt. Of considerable interest in practice is a capacitor that consists of two (or more) conductors carrying equal and opposite charges and separated by some dielectric media or free space. The conductors may h ...
... as the amount of charge in Coulomb required to raise the potential of the conductor by 1 Volt. Of considerable interest in practice is a capacitor that consists of two (or more) conductors carrying equal and opposite charges and separated by some dielectric media or free space. The conductors may h ...
CH 21 - AC Circuits and Electromagnetic Waves
... A transformer consists of two coils which are closely coupled so that the flux generated by one coil (the primary) passes mostly through the other coil (the secondary). The flux coupling can be made nearly complete if the coils are wound around an easily magnetizable core such as iron. ...
... A transformer consists of two coils which are closely coupled so that the flux generated by one coil (the primary) passes mostly through the other coil (the secondary). The flux coupling can be made nearly complete if the coils are wound around an easily magnetizable core such as iron. ...
Chapter 4 Delta Wiring Topologies
... Redrawing the connections and showing just what is connected at one of the 40° positions we get the delta circuit above. Now this only shows three of the nine storage capacitors. As the Rotor turns it is re-connected with another set of three freshly charged storage capacitors. This proposed circuit ...
... Redrawing the connections and showing just what is connected at one of the 40° positions we get the delta circuit above. Now this only shows three of the nine storage capacitors. As the Rotor turns it is re-connected with another set of three freshly charged storage capacitors. This proposed circuit ...
Diodes
... current flows out of the terminal labeled with the band.) Plot the V-I characteristic using the LabView program and note the dramatic increase in reverse current when the voltage reaches 5.6 volts. A Zener diode, biased at this breakdown condition, is a stable voltage reference because the voltage d ...
... current flows out of the terminal labeled with the band.) Plot the V-I characteristic using the LabView program and note the dramatic increase in reverse current when the voltage reaches 5.6 volts. A Zener diode, biased at this breakdown condition, is a stable voltage reference because the voltage d ...
A New Definition of Mutual Impedance between Two Coils for
... parameter to be used in a new decoupling method to compensate for the mutual coupling effect [2, 3]. We show that in MRI, due to the available knowledge of the signal source (the active slice of spinning protons, a new mutual impedance can be defined very conveniently and accurately to quantify the ...
... parameter to be used in a new decoupling method to compensate for the mutual coupling effect [2, 3]. We show that in MRI, due to the available knowledge of the signal source (the active slice of spinning protons, a new mutual impedance can be defined very conveniently and accurately to quantify the ...
A Novel Temporary Magnetic Remanence Thermodynamic
... the potential of having machines with few moving parts, high efficiency and low environmental impact. Magnetic heat engines need a variation of magnetisation with temperature and two effects are noted: the force experienced by magnetic materials in an external field[1-3] ( M is the volume magnetisat ...
... the potential of having machines with few moving parts, high efficiency and low environmental impact. Magnetic heat engines need a variation of magnetisation with temperature and two effects are noted: the force experienced by magnetic materials in an external field[1-3] ( M is the volume magnetisat ...
Coilgun
A coilgun (or Gauss rifle, in reference to Carl Friedrich Gauss, who formulated mathematical descriptions of the magnetic effect used by magnetic accelerators) is a type of projectile accelerator consisting of one or more coils used as electromagnets in the configuration of a linear motor that accelerate a ferromagnetic or conducting projectile to high velocity. In almost all coilgun configurations, the coils and the gun barrel are arranged on a common axis.Coilguns generally consist of one or more coils arranged along a barrel, so the path of the accelerating projectile lies along the central axis of the coils. The coils are switched on and off in a precisely timed sequence, causing the projectile to be accelerated quickly along the barrel via magnetic forces. Coilguns are distinct from railguns, as the direction of acceleration in a railgun is at right angles to the central axis of the current loop formed by the conducting rails. In addition, railguns usually require the use of sliding contacts to pass a large current through the projectile or sabot but coilguns do not necessarily require sliding contacts. Whilst some simple coilgun concepts can use ferromagnetic projectiles or even permanent magnet projectiles, most designs for high velocities actually incorporate a coupled coil as part of the projectile.