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If a conductor - such as a wire - moves through a magnetic field, a voltage is produced in the conductor. This may cause a current (if the wire is connected to an external circuit). This effect is used in generators to generate electricity.
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoA basic generator consists of a coil (called an 'armature') that rotates within a magnetic field. A voltage is induced into that coil due to the relative motion between the coil and the magnetic field, in accordance with 'Faraday's Law of Electromagnetic Induction'.
In the case of a very simple generator, the magnetic field is produced by a magnet although, in practice, an electromagnetis used because it can produce a very much stronger magnetic field.
In the case of a the simple generator, described above, it is necessary to connect the rotating coil to the generator's external circuit using a rotating switch, called a commutator (for d.c. generators) or slip rings (for a.c. generators). These devices cause sparking and require frequent maintenance, accordingly the types of generator used in power stations use a very strong electromagnet that rotates within a stationary armature, which does away with the need for commutators or slip rings.
Wiki User
∙ 15y agoThe use of magnets around a core of rotating copper is how electricity is generated - check out the theory of Electro-Magnetism....
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How and where are magnets used in places of work?
The main use of magnets in workplaces is for the transfer of electrical waves into tools, drills, saws, etc. They make use of magnets.
Do magnets have practical use?
no
What is one of the things people use magnets for in every day life?
Sticking things on refrigerators, some toys have magnets, there are magnets in computers and in TVs, certain doors have magnets, and most electronics have magnets.
What are some examples of magnetic energy transfer?
the force between the earth and moon, the force between the sun and the earth, the force between the two magnets, the force between iron material and magnet.
How do scientists use magnets?
Telephone, television, radio, and internet all use magnets to aid the communication.
What is Electrical energy is produced from and generators that use coils and magnets?
motion
What is the use magnets?
One major use of magnets is to determine the direction. The other major use is to generate electricity. All generators make use of of permanent or electromagnets to convert Mechanical energy into Electrical energy.
What is use of magnets?
One major use of magnets is to determine the direction. The other major use is to generate electricity. All generators make use of of permanent or electromagnets to convert Mechanical energy into Electrical energy.
What are two uses for magnets?
Stereo speakers and generators.
What could you use a magnet for?
All electric motors contain magnets- and information storage in computers is based on magnets. Electrical generators contain magnets, as do electrical transformers. Even the charger for your IPod is based on electromagnets.
How are magnets and electrical generators related?
Electrical generators have sliding magnets that go back and forth to create mechanical energy in them....and that's why they are related.
Which four things have magnets in them?
* Stereos * Clip holder * Brakes of a train * Generators
What are the Advantages and disadvantages of permanent magnets?
permanent magnets and wound stators (temporary magnets) can be used inthe generators and motors. in small size generators (eg: dynamo in cycle),permanent magnets are used because, 1 it does not require electricity to magnetise 2 does not require stator cooling but in larger size generators and motors, temporary magnets are prefered because, 1 it is small in size of same power permanent magnets 2 we can control the stator magnetic field by adjusting the power 3 the magnetic flux density per square cm is more etc..
What magnet produces electricity through a power plant?
The main alternators use electromagnetic windings "excited" by auxiliary generators whose own magnetic fields are of permanent-magnets.
What is the use of magnetism?
One major use of magnets is to determine the direction. The other major use is to generate electricity. All generators make use of of permanent or electromagnets to convert Mechanical energy into Electrical energy.
What are the things that require magnets to function properly?
Among other things, electric motors, generators, particle accelerators.
What is magnetism used for like anything?
Magnets are widely used in motors, generators. speakers and many other things.
