Magnetic stirrer

students will create a battery powered electromagnet and participate in the competition. This competition will teach the students how to work in teams constructively think about design and give them a certain understanding of electromagnets as well as magnetic…

Throughout this essay multiple physics concepts and equations will be discussed. Motor Effect: To summarise the motor effect it is the idea that the force caused by current flowing through a wire and causing a magnetic field around it. When this created magnetic field interacts with a magnetic field from a fixed magnet, it causes a force which moves the wire in relation to the right hand…

serve as the ‘brain’ or ‘memory centre’ of everyday electronics. Regardless of the size, the principles of all hard drives are the same. They hold large amounts of data using magnetism. A typical hard drive is made up of a platter (metallic and magnetic disk) that is divided into…

dependent variables were the amount of magnets (length of magnet) and the amount of shakes. This was done to help us discover if there was a relation between the amount of magnets, and the induced current produced. It was to investigate if a greater magnetic field and increased amount shakes would improve the shake torches ability to light the LED faster by producing more voltage. This was what was hypothesised; from the collected data it is fair to say there is somewhat a relation between the…

astrophysical-plasma processes 5225FiTransport properties I. INTRODUCTION There has been significant recent work on Vlasov-Maxwell (VM) equilibria that are consistent with nonlinear force-free1–8 and “nearly force-free”9 magnetic fields in Cartesian geometry. Therein, force-free refers to a magnetic field for which the associated current density is exactly parallel, which is the definition we shall also use ∇×B=μ0j, j×B=0.These works consider one-dimensional (1D) collisionless current…

Ohm’s law is the basic rule of the electricity that explains the relationship between electric current, voltage, and resistance. The ohm’s law was named after the German physicist Georg Ohm who discovered this rule or law. Ohm’s law statement Ohm’s law states that the electric current flowing through a conductor is directly proportional to the voltage and inversely proportional to the resistance. In other words, the electric current flowing through the conductor increases with increase in…

of sensor are determined by the physical variable they sense and are categorized in; Electrical: current, voltage, resistance, capacitance, inductance, and charge; Chemical: chemical concentration, composition, and reaction rate; Magnetic: magnetic field intensity, flux density, and magnetization; Mechanical: displacement or strain, level position, velocity acceleration, torque, pressure and flow rate; Radiant: electromagnetic wave intensity, wavelength, polarization, and phase;…

1.1. BLOCK DIAGRAM CHAPTER 2 2.1. COMPONENTS • Arduino – Purpose of processing • Voice Recognition Module – Voice command identification • Motor controlling Circuit – Motor Control • Gear Motors – Direction variation & constant speed running 2.1.1. ARDUINO Arduino Mega contains everything needed to support the function of the micro controller. It includes digital output/input pins & analog input pins. It connects to a computer through USB cables or power it by a use of AC…

1.0 Introduction A wire is defined as a single, flexible strand or rod of metal which is typically cylindrically-shaped. The core applications of wire, both single- or multi-stranded wire, are to withstand or carry mechanical loads in construction sector, whereas in electrical and electronic field are used to transmit electricity and telecommunications signals. For examples, from view of construction, wires are either braided or fixated together to form a bundle of strands, namely…

Equations where The hydrodynamics of a fluid is expressed in the form of conservation laws of mass, momentum and energy.The magnetohydrodynamic phenomena are a consequence of the mutual interaction of the fluid flow and the magnetic field. As is well known, a conductor crossing magnetic field lines gives rise to an induced electric field, which causes an electric current in the conducting fluid. The following are the Maxwell,s equations ∇⋅D = ρcf…