Electric motors and electric generators can have permanent magnets or electromagnets. It depends on the design. For example electric generators can be dynamos, alternators, or rotary converters. However, in General Electric motors are electromagnetic so that resistance disappears when current is cut and electric generators have permanent magnets.
Yes they both use a magnetic field to produce a force on a current-carrying conductor.
DC motos and generators are the same thing. You can run a motor off a battery, but if you crank it faster than it wants to go, by using some kind of engine, power will then flow back into the battery and the motor has become a generator.
The difference is in the purpose. An electromagnet is used as a magnet. An electric motor converts electricity into mechanical energy (movement), while a generator does the opposite: it converts movement into electrical energy.
Electrical motors and generators are machines which either convert electrical energy inputs into forces or applied kinetic energy inputs into electrical energy. In principle, any electrical generator can also be operated as a motor and vice-versa.
In a generator, mechanical energy is converted to electrical.
In a motor, electrical energy is converted to mechanical.
to magnify the density times pie to the square unit of 56
yes, electric generators are made of huge electromagnets
yes because a electromagnet is in a generator
Electric motors.
My only guess is that ,,, because electromagnets are more stronger and powerful than the ordinary magnets. Moreover they provide continuous magnetic field required for the generator. the generator in your car will have an electromagnet in the field the field will set the charge rate new cars have an alternator the field is the electromagnet in the rotor older cars have a true generator where the field is in the stator
Mainly in that the electromagnet is NOT permanent. In other words, it can be switched on and off.Another relevant difference is that the electromagnet constantly requires power, at least while it is on.
This is what makes a magnet an electromagnet - the ability to turn it on and off... Anyway, electromagnets can be turned off with either the help of a switch, or just by disconnecting the power supply.
A generator or alternator. If the magnetic field is permanent, the current produced from the coil will be alternating current. AC. Alternators usually work the other way round. The magnet is spun inside a coil of wire. The power is taken off from the stator. The rotor is an electromagnet, fed via slip rings on the shaft. The strength of the magnet can be varied and controlled externally, to control the output voltage.
A generator is a device that creates energy, or transforms it from one form into another. Here are some sentences.I bought a generator in case the electricity goes out.The generator in the dam was strong enough to power the whole city.That machine is a generator.
an electromagnet
an electromagnet
in a generator electromagnets are used for producing flux for rotor to cut so it can produce current in small generator they will have residual magnetism and in big generator current is supplied to electromagnet from another small dc generator
I thinkit is different because a motor changes eletricalenergryinto motion a generator changesa motion into eletericalenergy.
dynamo
no
Every electric motor and generator uses an electromagnet.
Generator
Every electric motor and generator uses an electromagnet.
Its role is to change mechanical energy into electrical energy.
The field winding on a generator is the winding that is electrified to create an electromagnet; it is generally the winding found on the rotor (the rotating part of the generator).
Its role is to change mechanical energy into electrical energy.