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What is induced by the relative motion between a wire and a magnetic field?
Wiki User
∙ 14y ago
An electromagnetic field.
Wiki User
∙ 14y ago
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How does electromagnetic induction produce induced current?
Before you can understand how electrical energy is supplied by your electric company, you need to know how it is produced. A magnet and a conductor, such as a wire, can be used to induce a current in the conductor. The key is motion. An electric current is induced in a conductor when the conductor moves through a magnetic field. Generating an electric current from the motion of a conductor through a magnetic field is called electromagnetic induction. Current that is generated in this way is called induced current. To induce a current in a conductor, either the conductor can move through the magnetic field or the magnet itself can move.
Could you make a generator by mounting permanent magnets on a rotating shaft and keeping the coil stationary?
Yes, only relative motion between the coil and the magnetic field is important.
How the generator and motor works ALTERNATING CURRENT GENERATORS BASIC AC GENERATORS Regardless of size all electrical generators whether dc or ac depend upon the principle of magneticinduction.?
An emf is induced in a coil as a result of (1) a coil cutting through a magnetic field, or (2) a magnetic field cutting through a coil. As long as there is relative motion between a conductor and amagnetic field, a voltage will be induced in the conductor. That part of a generator that produces the magnetic field is called the field. That part in which the voltage is induced is called the armature. Forrelative motion to take place between the conductor and the magnetic field, all generators must have two mechanical parts - a rotor and a stator. The ROTor is the part that ROTates; the STATor is the part that remains STATionary. In a dc generator, the armature is always the rotor. In alternators, the armature may be either the rotor or stator. ROTATING-ARMATURE ALTERNATORSThe rotating-armature alternator is similar in construction to the dc generator in that the armature rotates in a stationary magnetic field as shown in figure 3-1, view A. In the dc generator, the emf generated in the armature windings is converted from ac to dc by means of the commutator. In the alternator, the generated ac is brought to the load unchanged by means of slip rings. The rotating armature is found only in alternators of low power rating and generally is not used to supply electric power in large quantities.
What is crushing stress?
A localized compressive stress at the area of contact between two components which r not having relative motion between them, is known as crushing stress.
How is an emf induced in a wire?
Motion of electrons inside the coil by variation of applied magnetic field.(more precisely magnetic flux).Varying magnetic field applies lorentz force on the electrons which aligns them in a particular direction which causes a net current in the circuit. SAMITA
How induced current is produce?
when a conductor moves accross a magnetic field or when magnetic field moves with respect to a stationary conductor for current to be induced, there must be relative motion between the coil and the magnetic.
How induced current produce?
when a conductor moves accross a magnetic field or when magnetic field moves with respect to a stationary conductor for current to be induced, there must be relative motion between the coil and the magnetic.
Difference between statically and dynamically induced emf?
STATICALLY INDUCED EMFThe emf induced in a coil due to change of flux linked with it (change of flux is by the increase or decrease in current) is called statically induced emf.Transformer is an example of statically induced emf. Here the windings are stationary,magnetic field is moving around the conductor and produces the emf.DYNAMICALLY INDUCED EMFThe emf induced in a coil due to relative motion of the conductor and the magnetic field is called dynamically induced emf.example:dc generator works on the principle of dynamically induced emf in the conductors which are housed in a revolving armature lying within magnetic field
How can produce an electric current by means of electric magnetic induction?
Create relative motion between a magnetic field and a loop of wire.
What produces an electromotive force through relative motion between a conductor and a magnetic field?
Electromagnetic Induction.
How is electromagnetic induction defined?
When there is relative motion between a magnet and a coil of wire, an electric current starts flowing in the coil. This phenomenon is called electromagnetic induction.When lines of a magnetic field cross the line of an conductor, electric current is induced in it.
What two important requirements are necessary before generator action is possible?
Conductor in a magnetic field with relative motion between the two.
Motion magnetism and a conductor will create what?
Moving a conductor (a wire) in a magnetic field will create voltage in the wire. Note that relative motion must occur, i.e., the wire must move "across" the magnetic lines of force, and not "along" them to create voltage. Moving a conductor in a magnetic field is the basic idea behind motors and generators.
Difference between rest and motion?
Actually very difficult to determine, as the whole universe is in motion. One usually refers to relative rest or relative motion.
What is a machine that uses an energy source to produce electricity?
A generator generates electricity. A simple generator consists of a magnetic field, relative motion between the conductor and magnetic field, and a conductor to carry electrical current to the load. Turbines drive the generators to create the necessary relative motion utilizing steam or water as the prime mover.
Can there be a frictional force between two surfaces when there is no relative motion between the two?
Yes, friction can be the force that is preventing relative motion between two surfaces; this is called traction. That is why you can walk without slipping.
A loop of wire is placed within a magnetic field If the loop of wire is stationary as is the magnetic field will a current be induced in the wire?
No it will not. In order to get electrical activity you need motion. Either the magnet or the wire must move.
