what is an example of electromagnetic induction?
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For example, an electric generator produces a current because of electromagnetic induction. Other uses for electromagnetic induction include electric motors used in anything from washing machines to trains, electric hobs and cookers, transformers, welding and guitar pickups.
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Principle : It is based on the principle of production of dynamically (or motionally) induced e.m.f (Electromotive Force). Whenever a conductor cuts magnetic flux, dynamically induced e.m.f. is produced in it according to Faraday's Laws of Electromagnetic Induction.
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AC generators work on the principle of Faraday's law of electromagnetic induction which states that electromotive force -EMF or voltage – is generated in a current carrying conductor that cuts a uniform magnetic field.
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Also according to Faraday's law of electromagnetic induction, changing magnetic field will create an electric field perpendicular to it's direction. That is why in an electromagnetic wave, electric and magnetic fields promote each other in directions perpendicular to themselves. So they are perpendicular.
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The modern-day generator works on the principle of electromagnetic induction discovered by Michael Faraday in 1831-32. Faraday discovered that the above flow of electric charges could be induced by moving an electrical conductor, such as a wire that contains electric charges, in a magnetic field.
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['The magnetic field at any given point is specified by both a direction and magnitude.', 'Magnetic lines of force start from the North Pole and end at the South Pole outside magnet.', 'Two magnetic lines of force cannot intersect each other and they are continuous along the axis of the electromagnetic conductor.']
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Electromagnetic forces can be used for various applications, it is very versatile; there are a plethora of ways to utilise electromagnetic forces and energy, from small scale uses e.g microchips to larger scale and life saving uses e.g radiotherapy. It is clean energy, unlike oil and coal.
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Electromagnetic induction occurs when a circuit with an alternating current flowing through it generates current in another circuit simply by being placed nearby. ... Every electric current has a magnetic field surrounding it. Alternating currents have fluctuating magnetic fields.
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['Dimensional Analysis.', 'Gravitation.', 'Electrostatics.', 'Current Electricity.', 'Heat Transfer.', 'Electromagnetic Induction.', 'Waves & Sound.', 'Geometrical Optics.']
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Other uses for electromagnetic induction include electric motors used in anything from washing machines to trains, electric hobs and cookers, transformers, welding and guitar pickups. Gill R&D, for example, use electromagnetic induction for non-contact position sensors.
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['Winding resistance: Current flowing through the windings causes resistive heating of the conductors.', 'Eddy currents: Induced currents circulate in the core and cause it resistive heating.']
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Electromagnetic waves can be split into a range of frequencies. This is known as the electromagnetic spectrum. Examples of EM waves are radio waves, microwaves, infrared waves, X-rays, gamma rays, etc.
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An induction cooker transfers electrical energy by induction from a coil of wire into a metal vessel that must be ferromagnetic. The coil is mounted under the cooking surface, and a high frequency (e.g. 24 kHz) alternating current is passed through it. The current in the coil creates a dynamic magnetic field.
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A simple electromagnet consisting of a coil of wire wrapped around an iron core. A core of ferromagnetic material like iron serves to increase the magnetic field created. The strength of magnetic field generated is proportional to the amount of current through the winding.
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Two coils are placed close together in a physics lab to demonstrate Faraday's law of induction. A current of 5.00 A in one is switched off in 1.00 ms, inducing a 9.00 V emf in the other.
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Electromagnetic waves are emitted by electrically charged particles undergoing acceleration, and these waves can subsequently interact with other charged particles, exerting force on them.
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The DC generator working principle is based on Faraday's laws of electromagnetic induction. When a conductor is located in an unstable magnetic field, an electromotive force gets induced within the conductor. The induced e.m.f magnitude can be measured from the equation of the electromotive force of a generator.