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When a conductor is rotated in a magnetic field at what point in the cycle is emf at maximum amplitude?
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How does an electric generator work?
Converts mechanical energy into electricity. Movement of magnetic field across a conductor will cause electron flow. The windings of a generator are rotated within a magnetic field.
Role of stator and rotor in synchronous and induction motor?
Stator is part of rotating mechanical device thats sorrounds the rotor to rotate it through the induced magnetic field while the Rotor, is the one who is rotated by produced magnetic field in the stator,.
How is sinusoidal signal produced?
You may use a filter which will round off the square pulse to sine wave.The higher order the filter the better the SINE wave . The Square pulse and the sine wave must both be tuned to our required frequency
Working principle of generator?
An electric generator is a device which converts mechanical energy to electric energy. An electric generator basically works on two principles, they are:- 1. Electro magnetic induction: This was first discovered by Michael Faraday this law states that when a electric conductor moved through a magnetic field cutting the electro magnetic waves, a electric charge is produced in the conductor. 2. Flemming's right hand rule: Place your thumb finger, index finger, and your middle finger in such a way that all the three are mutually perpendicular to each other. Here if your thumb points the thrust or force and index finger points the electro magnetic field then your middle finger points the direction of induced current. An electric generator consists of a electromagnet or a huge horse shoe magnet in which an armature is enclosed. The armature is made of copper coils. Now when the armature is rotated, it cuts the electro magnetic waves generated by the magnet and hence as a result of electro magnetic induction electricity is generated in the armature and the direction of the induced current can be found out using the Flemming's Right Hand Rule. And how the electric current produced later is stored and carried out differentiates between AC generator and DC generator
Why is a motor is a reverse function of generator?
from Faraday's laws its clear that when ever there is change in flux, an emf is produced. in a dc motor there are permanent magnets that produce a magnetic flux. If the shaft of the motor is rotated, which in tern rotates the coil that is placed in the magnetic field. Thus, changing the flux that cuts the coil. since there is change in flux an emf is induced.thus, a dc motor can be used as a generator.
How does an electric generation work?
Converts mechanical energy into electricity. Movement of magnetic field across a conductor will cause electron flow. The windings of a generator are rotated within a magnetic field.
How does an electric generator work?
Converts mechanical energy into electricity. Movement of magnetic field across a conductor will cause electron flow. The windings of a generator are rotated within a magnetic field.
How does an electric generators work?
Converts mechanical energy into electricity. Movement of magnetic field across a conductor will cause electron flow. The windings of a generator are rotated within a magnetic field.
A coil of wire connected to a galvanometer When the coil is rotated in a magnetic field the galvanometer records a current The current results because?
The creation of electric current in a conductor moving in a magnetic field was discovered by Faraday in about 1825, but he didn't know why it happened. Fundamentally, it is due to the attraction/repulsion between the magnetic field and the free electrons in the conductor, so that when the conductor moves it causes the electrons to move, which comprises the current. A similar effect can be obtained if the conductor is still and the magnetic field moves. These effects are the absolute fundamental reasons for being able to generate electricity using rotating machines, which are designed with different characteristics but all make use of the above physical facts
A conducting wire is placed inside a magnetic field. When the wire is rotated an electrical current runs through it. Which of these best explains why the wire needs to be rotated?
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Why is there an induced current in a coil when a coil is rotated between two magnets?
One of the laws of physics is that when a conductor moves in a magnetic field a current is induced in that conductor. If you then coil that conductor you effectively end up with several conductors and you'll get more current. Incidentally, you might be better of rotating the coil between the poles of a single magnet (a horseshoe type) rather than between two magnets as you've said in your question, because the two may cancel their magnetic fields out, depending on how they are positioned, whereas one won't.AnswerIt's voltage, NOT current, that is induced into a conductor. Current , resulting from this induced voltage, will only flow providing the conductor forms a complete circuit.
Where is the strongest field in a toroidal magnet?
according to the ampere's law . magnetic field is strongest in a loop or a plane. and about toroid the magnetic is strongest in the coil where the wire is rotated around it . Magnetic field is minimum inside and outside the toroid.
Why does a compass react when near an electrical circuit?
Hi, when a current flows through a conductor a magnetic field is set up around it, it is this magnetic field or flux that attracts your compass. This of course has practical applications such as motors or generators using tight coils of wire which when a current is passed through sets up magnetic fields, in the form of a generator these lines of flux are turned and passed to stationary coils, in a motor these fields are rotated causing the yolk or rotor to chase the rotating magnetic field giving us circular motion.
How does a simple AC generator work?
Working of A.C. GeneratorThe coil is rotated in anti-clock wide direction. In the first half rotation the arm AB is moving outward and CD is moving inward. So the e.m.f. is induced in the arm AB from A to B. And in the arm CD from C to D. After half rotation (in the second half). The arm CD is moving outward and AB is moving inward. In this time current is induced in arm CD from D to C. And in arm AB from B to A. In the second half rotation the current direction is changing so in this generator AC is produced.
Why is a berthold penetrameter in magnetic particle inspection?
A Berthold Pentrameter is similar to a pie gauge. It is used to determine current flow, magnetic field direction, sensitivity, and quality in magnetic particle inspection. A ferromagnetic piece is cut into quadrants, 90 degrees to each other on a rotating body. These cuts is will become visible when magnetic particle medium is applied and magnetism is applied. The body of the gauge is rotated to determin maximum indication direction, thusly you can determine the field direction which is 90 degrees to the indicated direction.
Why there is an induced current in a coil when a coil is rotated between two magnets?
cutting through magnetic lines of force produce electric current.
Role of stator and rotor in synchronous and induction motor?
Stator is part of rotating mechanical device thats sorrounds the rotor to rotate it through the induced magnetic field while the Rotor, is the one who is rotated by produced magnetic field in the stator,.
