Essays on Magnetic Flux

Electromagnetic induction can be defined as the production of electromotive voltage or force across an electrical conductor when it dynamically interacts with a magnetic field. There are numerous uses of electromagnetic induction, for example, in electromagnetic elements such as transformers and inductors, electric motors, generators, and transcranial magnetic stimulators.

Applications of Electromagnetic Induction

Electromagnetic induction is an extremely useful phenomenon with various applications. It’s applied in the creation of eddy currents, which are swirling currents set up in conductors in response to changing magnetic fields. Electrons in the field swirl in a perpendicular plane to the magnetic field causing loss or transformation ...

Abstract

Permanent magnet synchronous motors (PMSM) are a type of motors that have permanent magnets mounted on the rotors instead of the rotor windings. This particular design gives the motor a few advantages over ordinary induction synchronous motors. The magnets attached to the rotor do not require excitation, which reduces the power consumption in PMSM. This gives the motor high operational efficiency and reduces the motor active diameter. PMSM are therefore associated with applications that require high torque but have limited operation space. The permanent magnets suffer from flux leakage and are therefore aligned in a pattern that minimizes flux ...

Abstract

The experiment is aimed at constructing a step-up transformer. This is due to the type of materials being used and the number of rolls that the wire is rolled on the U-shaped material. This can easily be related to the alternating current that is tapped from one source to the other. This current can easily be measured in respect to the size of the voltage that is alternated in between the primary transformer and that of the secondary transformer. The number of coils in the primary material is two; the other secondary coil has four coils. The material used to ...

Introduction

There are many resemblances that can be observed in magnetic and electric phenomena. A magnet comprised of north and south poles which are opposite to each other. The opposite poles attract and likewise repel each other. A magnet has principle property to influence the surrounding space. This surrounding effect of a magnet is known as a magnetic field. Magnetic fields consist of lines of force and force of attraction and repulsion that travel/or move along the lines. The developed forces depend on strength and distance apart the poles. Figure 1: Magnetic lines of force for bar magnet A ...

Abstract— Faraday's Law is used to estimate the magnetic field of the magnet from the maximum induced voltage. This paper presents the report of the experiment on Faraday’s Law of induction. In this experiment Faraday's Law and Lenz's Law are examined, along with the concepts of magnetic flux and conservation of energy. The experiment was carried out by using a wand having a coil at its end. This coil is made to swing through the magnetic field of a horse magnet. The induced EMF stated by Faraday and the reason for the minus sign added to it by Lenz has been ...

Lab Report

Objective: To explore the characteristics of three single-phase transformers in a three-phase configuration. Figure 1: Lab 1, Diagram. - Star- Star (Y-Y) Connection In star- star or Y-Y connection, each phase is 120° out of period with the extra two periods. In the same way, each secondary winding is 120° out of phase with the other two phases. Every primary winding is magnetically connected with secondary winding using the common leg. When talking about primary to secondary phases we will see that there is no phase difference in primary-secondary connections. It simplifies that both, primary and derived ...

The experiment was to use the coiled wire and a magnet to produce current. The apparatus used to do this experiment were bar magnet, insulated copper wire a sensitive current measuring device and a paper towel.Procedure used.Wrapped the insulated copper wire around the cardboard tube and formed a solenoid. Then connected each end of the wire to the terminals of the current measuring device and switched it on (galvanometer) to complete the circuit.Inserted the bar magnet inside the solenoid and moved it faster and slower and switched off the galvanometer disconnect the circuitReduced the number of turns in the solenoid and repeated the ...