Faraday's law of induction

Physics Lab Report – C15 Title: Investigation of magnetic fields by search coil Objective: To use a search coil and a CRO to investigate the magnetic fields generated by alternating currents through a straight wire and a slinky solenoid. Apparatus: |Search coil 1 |Slinky solenoid 1 | |CRO 1 |Slotted

a condition of mutual inductance between the coils. • Transformers Having a different number of coils between two coils of wire can cause a decreas of voltage of AC currents in applications. Transformers are based on Faraday’s Law of electromagnetic induction and mutual induction; the transformer has the first wire coil that emits a magnetic flux that has a EMF in a secondary wire coil with aid of a high magnetic permeable core. Task 3.4 Series wound DC motor The characteristic of a series

Magnetic Resonance Imaging In 1944, Isidor Isaac Rabi was awarded the Nobel Prize for Physics for his resonance method for recording the magnetic properties of atomic nuclei. This method was based on measuring the spin of the protons in the atom's core, a phenomenon known as nuclear magnetic moments. From Rabi's work, Paul C. Lauterbur and Peter Mansfield were able to research into magnetic resonance imaging (also known as nuclear magnetic resonance, NMR) and were

Maglev train states the train is lifted above its tracts by electromagnetic force when operating. According to the study of Liu, Long and Li(2015), the general advantages of this brand-new technology over the conventional one, namely, the wheeled train, can be concluded into the following three items. First, due to the absence of the friction, it can run more smoothly and quietly. Secondly, there are less wear and tear happening during the operation, hence less maintenance and on-going cost is needed

Dear Prime Minister, I believe that New Zealand’s energy supply is secure for the future. From my research, I have found that from 1974 to 2009 the electricity demand has more than doubled in size. Currently, most of New Zealand’s energy is generated from renewable sources which mean that it can be used by future generations to come; we do not need to be concerned that they will cease to exist. However, New Zealand has been named as one of the least energy efficient countries in the world and

windings by folding the wire back on itself.      At the same time Henry was doing all this, another physicist, Michael Faraday was doing similar work in England. Henry was slow in publishing his results and was unaware of Faraday’s work, therefore Faraday is recognized as the discoverer of mutual inductance, which is the basis of transformers, while Henry is only accredited for the discovery of self-inductance.      At the age of 35, Yale’s geologist

train’s levitation by using the force of attraction between the permanent magnet mounted on board and the railway track( Long, He and Xue, 2011). In addition, feedback control loops are necessary and crucial in this system. According to Earnshaw’s law, which states that a permanent magnet can never stay static in

Electricity and Magnetism History Electromagnetism Originally electricity and magnetism were thought of as two separate forces. This view changed, however, with the publication of James Clerk Maxwell's 1873Treatise on Electricity and Magnetism in which the interactions of positive and negative charges were shown to be regulated by one force. There are four main effects resulting from these interactions, all of which have been clearly demonstrated by experiments: 1. Electric charges attract

Introduction Today society shares enthusiasm about the expansion and increased production of alternative energy to meet the global energy needs, rather than relying on the limited supply of fossil fuels. It is estimated, by the end of this century, the fossil fuels that sustain civilisation will be depleted. So to prepare for the new age of energy production, development of renewable energy sources such as wind power is very important. Wind & Wind Turbines Wind is formed from the heating and cooling

Defibrillators are devices that deliver a dose of electrical energy (electrical shock) to an afflicted heart in order to carry out defibrillation. Defibrillation is achieved through an electric shock to the heart which helps to re-establish normal rhythms in a heart having dangerous arrhythmia (abnormal heart rhythm), ventricular fibrillation (heart beats with rapid, erratic electrical impulses) or in cardiac arrest. The most used type of defibrillator in the recent world is AEDs. Automated external