Turbidity current

a) According to the right-hand rule, the direction of the magnetic fields of the 3 wires are shown: We find the magnetic fields B1, B2 and B3: 퐵1=퐵2= 푢0 푖 = 푢0 푖 = 4∗3.14×10−7 ∗(3.65) =ퟒퟐ.ퟔퟔퟎ풖푻 2휋푟 2휋( 2푎) 2 ∗ 3.14 ∗( 2(0.0121)) 퐵3= 푢0 푖 = 푢0 푖 = 4∗3.14×10−7 ∗(3.65) =ퟐퟎ.ퟏퟏퟎ풖푻 2휋푟 2휋(3푎) 2 ∗ 3.14 ∗(3∗(0.0121)) The x components of the B1 and B2 cancel each other; therefore the net magnetic field will be downward and we have (the negative sign is because the direction is downward): 퐵=− 퐵1cos 45 +…

speed controller, and voltage source inverter (VSI). A.PULSE WIDTH MODULATION It is a commonly used technique for controlling power to inertial electrical devices, made practical by modern electronic power switches. The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast pace. The longer the switch is on compared to the off periods, the higher power supplied to the load is. The PWM switching frequency has to be…

conduction states, which are presented in Fig. 3. MOSFET on-resistance Ron is necessary to limit the instantaneous current when two capacitors are connected in parallel (e.g. in Fig. 3c). Seeing that, MOSFET is the preferred switch to realize the proposed converter, due to its resistive behavior when conducting. With the intention to simplify the analysis, it was assumed the current, independent of the direction, always will be conducted by the MOSFET channel, instead of the body diode. The…

Week 4 Family and Friends Task 7 – Ten suppressed inventions Suppressed inventions are inventions that have been put an end to it by force. Wardenclyffe Tower is one of the suppressed inventions developed by Nikola Tesla. It could successfully send wireless electricity to any part of the world in abundance (Free Energy, n.d.). Although it has been suppressed because the funding for it was cut by J.P. Morgan, who also ostracized any further funding from any other organizations. Wardenclyffe tower…

Davy’s Journey Towards Electromagnetism During the early 1800s, scientists made observations that were tested repeatedly and then were seen as fact. Until 1820, electricity and magnetism were believed to be separate branches on the tree of science. Once others believed that idea it became cemented in to the scientific community. However, Humphry Davy was a chemist whose determination and experimentation overturned that idea. Despite obstacles, Oersted’s and Davy‘s experiments changed his peers’…

Ella True 11/16/14 Schneck 3 Honors Chemistry Energy Persuasive Essay Before reading this paper, one should understand what electricity is and how it works. One should also understand that electricity is a type of energy. Electricity is simply the flow of electric charge. This may sound fairly straight forward, but there is a lot more to this simple statement. One might wonder: Where exactly is this charge coming from? What is obtaining this charge? How is the charge flowing and to where? How…

13Mn0.54O2 54O2 electrodes (SA, EDTA, CA/EDTA and EV), the cells were cycled in the volte range 2.0-4.8V at various current rates from 0.1C to 3.0 C, and the results are shown in Fig. 11. It can be seen from Fig.2 that, the discharge capacity of all electrodes gradually decreases to different degree, which attributed to increasing the polarization of the electrodes at high current rate. This is may be due to reduction of the intercalation time of lithium ions (Li+) into the crystal lattice,…

CHAPTER1 INTRODUCTION TO ZVT 1.1 What is ZVT? Zero voltage switching can best be defined as conventional square wave power conversion during the switch’s on-time with “resonant” switching transitions. For the most part, it can be considered as square wave power utilizing a constant off-time control which varies the conversion frequency, or on-time to maintain regulation of the output voltage. For a given unit of time, this method is similar to fixed frequency conversion which uses an adjustable…

Polarization in Antenna Polarization is the basic thing used in transmission antennas for the propagation and reception of the signals. As we know that antenna emits electromagnetic waves in the space for the communication purposes. These two types of waves as depicted by the name Electro-Magnetic is a combination of electrical and magnetics fields. These two waves are mutually orthogonal i.e. oriented at an angle of 90o with each other. The general wave form is given as Fig: Electromagnetic…

key, a battery, wire and a line of poles between stations for the receiver. Charles Wheatstone and his peer developed a telegraph system with “five magnetic needles that could be pointed around a panel of letters and numbers by using an electric current,”…