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Passing an electric current through coiled wires will create an electro-magnet, whose magnetism can be increased if iron or some other magnetic rod is used as a core.
A simple electromagnet can be constructed by wrapping a wire around a wooden pencil and attaching a battery to the two ends f the wire. The coil will have magnetic properties even if the pencil is removed. If you use a large nail rather than a pencil the nail will become magnetised while current is flowing, and to a lessor degree even when the current is stopped.
The interactions and relationships between electricity and magnetism form the basis of both generators, alternators, electric dynamos, electric motors, speakers, and even telephones.
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoA transformer has a magnetic circuit and two or more electric circuits.
The magnetic circuit is the iron-based core round which the magnetic flux flows. This links with the electric circuit, which consists of windings of insulated wire, usually copper. The changing flux in the core, produced by alternating current in one winding, induces a voltage in the other winding(s).
The basic design formula for a transformer is the electromagnetic induction formula:
V = N d/dt (phi) where V is the voltage in a winding of N turns and phi is the magnetic flux. This can also be written in a simpler form for a single frequency: V = 2 x pi x frequency x magnetic flux. The voltage and flux are expressed in rms quantities. The flux is equal to the flux density times the cros--section area of the core.
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How does a generator convert mechanical energy into electrical energy?
An electric generator is a device used to convert mechanical energy into electrical energy, Which is used to convert mechanical energy into electrical energy. The generator is based on the principle of "electromagnetic induction" discovered in 1831 by Michael Faraday, a British scientist. Faraday discovered that if an electric conductor, like a copper wire, is moved through a magnetic field, electric current will flow (be induced) in the conductor. So the mechanical energy of the moving wire is converted into the electric energy of the current that flows in the wire.
What do electric and magnetic fields contain and transport?
Electric and magnetic fields contain energy and information. They transport this energy and information through space. In the case of electric fields, they are generated by stationary electric charges and transport energy and information by interacting with other charges. Magnetic fields, on the other hand, are generated by moving charges or changing electric fields and also transport energy and information through their interactions with other magnetic fields or moving charges.
What happens with the energy associated to the magnetic field of a coil with electric current if the electric current is turned off?
The magnetic field or energy associated with the magnetic field will no longer be generated if the current is turned off.
For a permanent magnet where is the energy associated to the magnetic field of the magnet stored?
For both the magnetic and electric (static) fields, energy is considered to be stored in the field.
What is a example of converting electrical energy into magnetic energy?
An electromagnet, a coil of wire round a magnetic core. An electric current in the wire produces a magnetic field round the core, which contains energy which could be used to lift a load.
What are the devices that convert magnetic energy into electrical energy?
Magnetic energy and electric energy are virtually the same according to Maxwell's equations. Which shows maxwell doesnt know what he is talking about then, they are two very distinc energies. Im not sure myself about the ways to convert them I am looking into it at this very moment.
What energy produces a magnetic field?
electric energy
Which transducer convert electrical energy into sound energy?
Electrical energy is converted to sound energy in loudspeakers and earphones. The basic internal transducers are either magnetic coils or piezo-electric crystals.
How does a battery convert energy?
The two sides, the anode and the cathode contain opposite charges. The difference between the charges determines the potential of the battery. The potential can be described as stored energy, called electric potential energy. When the anode and cathode are connected by a circuit, the difference between the charges diminishes, which means this stored energy is being lost somehow. Different loads can harness this energy and convert it to another. Electric motors use magnetic fields induced by the electric current, which means that the electric potential energy is being converted into magnetic potential energy, which is immediately converted into kinetic energy, while incandescent light bulbs use electrical resistance of a filament to convert the electric potential, into a combination of infrared and visible light energy.
What are the devices that convert electrical energy into magnetic energy?
Electromagnets.
Which form of energy does not require matter for traveling through space?
Electromagnetic radiation. Energy can also be transmitted by electric fields, by magnetic fields, and by gravitation.Electromagnetic radiation. Energy can also be transmitted by electric fields, by magnetic fields, and by gravitation.Electromagnetic radiation. Energy can also be transmitted by electric fields, by magnetic fields, and by gravitation.Electromagnetic radiation. Energy can also be transmitted by electric fields, by magnetic fields, and by gravitation.
What do magnet have to do with simple motors?
Motors convert electrical energy to mechanical energy through moving electric conductors through a magnetic field. Magnets can be permanent magnets or electromagnets.
Is electric energy a shorter name for electromagnetic energy?
Essentially yes. Where there is electric energy there is magnetic energy.Electric Energy E= QV = IW where Q is charge and V is volts and I is current and W is Webers. QV is electric energy and IW is magnetic Energy.
What was the purpose of the electric light bulb?
To convert electric energy into light energy
What energy convertions happen in an electric motor?
Electrical into magnetic, and then magnetic into mechanical.
To what kind of energy do flashlights convert?
Flashlights convert electric energy to light energy and heat energy.
What do electric and magnetic fields contain and transport?
Electric and magnetic fields contain energy and information. They transport this energy and information through space. In the case of electric fields, they are generated by stationary electric charges and transport energy and information by interacting with other charges. Magnetic fields, on the other hand, are generated by moving charges or changing electric fields and also transport energy and information through their interactions with other magnetic fields or moving charges.
