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# How do electric motors work?

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Electric motors work by placing the opposite poles of an electromagnet that is fixed onto a spindle or axle near to either end of a fixed magnet. This causes the moving electromagnet to spin slightly then come to a halt. If, at the correct time, the battery or other source of current feeding the electromagnet is flipped - thus reversing the polarity - it will complete another slight spin in the same direction. The repitition of this action provides the movement required to make the spindle of the motor rotate.

What makes a motor turn is based on the fact that magnetic fields produce physical force that can move things. If you have ever played with magnets you have seen this in action as you use one magnet to attract another magnet or force it to move without touching it, depending on how you line up their poles.

All magnets have a north pole and a south pole. Like poles repel each other and unlike poles attract each other.

So, in a motor, electricity is used to create magnetic fields that oppose each other and cause something to move, which happens to the motor's rotating part, called the "rotor".

On the rotor there are loops of wiring - called "windings" - that have an opposing magnetic field to a magnetic field produced in the housing of the motor that does not move, which is called the "stator". Its magnetic field is produced either, in the case of a very small motors, by permanent magnets or, for most other sizes of electric motor, by loops of wiring called"field windings".

It is the repelling action of the opposing magnetic fields which causes the rotor to turn inside the stator.

In heavy electric motors having field windings, big problems can arise from excessive heat buildup - including a high risk of the motor's windings and/or its power input cables catching on fire - if something ever prevents the rotor from turning whilst it is still being supplied with electricity. If properly-sized circuit breakers are not installed to give the motor adequate overcurrent protection, any general overloading of the motor or siezed rotor shaft bearings can easily cause such problems.

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Electric motors convert electrical energy to mechanical energy.

Inside the cover of any electric motor there are 2 kinds of magnets:
• One does not move and is called the "stator".

On some kinds of electric motors the stator can be a permanent magnet and on others it can be an electromagnet.

• The other kind of magnet is called the "rotor" because it rotates inside the stator.

The rotor is always an electro-magnet and when you give it electricity, its copper coils make its metal pieces (which are in the middle of the coils) magnetic.
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# If an electric scooter doesn't work can you put a new motor on the scooter and have it run?

try zapworld.com . all have motors for sale. The answer of course is yes. You can change the motor on a non functioning electric scooter. First you will need to check some things. Are you sure the motor is the part that is not working? Could be a reostat that feeds the juice to the motor and so ( Full Answer )

# The electric window in your 99 Z71 quit working The cable broke The motor is good What is the assembly called And can you buy it without the motor?

Answer . No you cant replace just the motor. ITs fairly cheap and much easier to replace as one unit. It comes with the motor, cable, and guide rails.

# 91 Jeep Cherokee Limited it has the electric seatsthe switch works and the motor activates but the seat doesnt move can the gear be changed on the electric motor or does the whole motor need changed?

jag seat same problem I have a broken plastic gear in my seat motor also.. seems silly to buy an entire motor for 170 dollars when a ten cent gear is all i need. where do you get these things..?? Have just stripped my 1991 Jeep Cherokee seat motor assembly, because it has the same problem. There ( Full Answer )

# Toyota Starlet 1993 drivers electric window not working not fuses mavbe electric motor any suggestions?

Window motor i'd say. Both of mine have given up. Ã¢Â‚Â¬270 from Toyota for one, they can be had for Ã‚Â£20 from eBay

# How does an electromagnet convert electrical energy to make a simple motor work?

for usa test prep In an electric motor, at the moment that the half-turn of the rotor (central electromagnet) completes, the field of this electromagnet it flips if you think about it, if you put two positive or two negative sides of a magnet together what happens? one flips because they a ( Full Answer )

# How do motors work?

They use the magnetic field induced by the current carried through loops of wires around the central ferromagnetic axis. These loops are oriented so that the magnetic field applies a torque on the axis, thereby causing it to turn. When an electrical source, (battery) completes a circuit, the electri ( Full Answer )

# How can I obtain the electrical wiring diagram of an MCC Motor Control Centre for two motors that work cyclically one at a time with automatic control?

USE IMPULSE RELAY... FOR ALTERNATE OPERATION OF MOTORS OR CAN BE COMBINED WITH A TIMER IF REQUIRED.. MOTOR SUPPLIERS USUALLY PROVIDE DIAGRAMS WITH DIFFERENT STARTING METHOD OPTIONS. CHECK WITH ABB, SCHNEIDER ELECTRIC, GE, CUTLER-HUMMER CATALOGUES, ETC., AND YOU WILL FIND ALL INFORMATIONS FROM CONTR ( Full Answer )

# Why has your auto washer electric motor stopped working?

Answer . \n1 The pump is clogged and the motor can't start up. Most new energy efficient dishwashers are now fitted with very small motors with no get up go.\n2 kill the breaker and pull an inspection. try to turn the motor - OK. Ok - Not more than a dozen other causes to look at now. Get the m ( Full Answer )

# What do electric motors do?

Answer . An electric motor is a device which converts electrical energy into mechanical energy in order to do work.

# What is an electric motor?

An electric motor uses electrical energy to produce mechanical energy. The reverse process, that of using mechanical energy to produce electrical energy, is accomplished by a generator or dynamo. Traction motors used on locomotives and some electric and hybrid automobiles often perform both tasks ( Full Answer )

# What safety precautions are necessary when working with an electric motor?

LOCK OUT THE POWER SO THAT IT CAN NOT BE TURNED ON BY ANYONE ELSE. IF IT HAS CAPASITORS MAKE SURE THAT THEY ARE DISSCHARGED PRIOR TO REMOVAL.

# Is there a way to raise window on car if switch is ok but electric motor does not work?

Yes,. Press against the window from the inside and the outside and slowly "walk" it closed.. Yes,. Press against the window from the inside and the outside and slowly "walk" it closed.

# If a Ford Puma headlamp levelling motor is not working is it likely to be a problem with the electrics or the motor itself?

Based on previous repairing of mine, it could be that the contact inside has worn away. It is a metalic strip, when it gets to the top / bottom the motor stops. I found mine was worn half way down

# Passenger side electric window wont go up but the motor works on an f150supercrew?

I'm working on the same problem on my 94 F150..went to U tube and found how to remove door panel and "window regulator". While replacing the window regulator would probably solve my problem I think there is a simpler answer since my motor works and I can get the window to jog up a little if I work a ( Full Answer )

# How does motor work?

The engine works when the fuel is pumped to the wheel. The fuel liquid becomes to gas!

# How a current limit starter works for an electric motor?

\nit consists of a series of resistances, a magnet and a bar that is pulled by the magnet. Initially all the resistance comes in series so the current is limited. when the bar is pulled towards the magnet slowly the resistance decreases and the current increases. thus it protects the DC motor from i ( Full Answer )

# How does the electric motor in a hair dryer work?

I don't know how it works but I know how it heats up: there are metal coils in the hair dryer that heat up, so hot it can toast, toast! Then, a fan turns on and blows warm air.

# How do you calculate the phase current when working with a 10kw 3 phase electrical motor?

The 3 phase formula you are looking for is I = HP x 746/1.73 x E x% Eff x pf. Where I = amps, E = voltage, %Eff = percent efficiency of the motor and pf = power factor.

# How are electrical generators and electrical motors different?

The basic difference between an electrical generator & electrical motor is the conversion of energy. Principally, in case of electrical generator the mechanical energy (steam, water, wind) is converted into electrical energy whereas in case of electrical motor the electrical energy is converted in ( Full Answer )

# Can an electric motor work without a magnet?

Most electric motors require magnet to operate on the principal ofattraction. A motor can operate without any permanents magnets byreplacing the with another coil of wire.

# What electric motor does an electric car use?

A electric car uses either a DC or AC motor. Typically they use DC motors.

# How does a electric car motor work?

Simply as the clock move it also produce motion by the power of the battery. In electric car the is a storage as battery that store the charge and when the car require it it acceleration to it

# How you test the electric motor that it produces electricity?

Electric motors do not produce electricity, they use electricity, and convert that energy to another form of energy, that we measure in horsepower.. See related links.

# Which electrical wires bring electricity to an electrical device or motor?

which electrical wires bring electricity to an electrical device or motor . The cable, otherwise known as the flex or the lead.

# What is the differences between the way electric motors work and the way generators work?

Generators change mechanical power to electrical power. Motors change electrical power to mechanical power. Permanent magnet dc motors and generators can usually work either way.

# If magnetic compass does not work on moon Why electric motor work on moon?

A magnetic compass does not work on the moon because the moon has no magnetic core to generate the north and south poles like the earth. As a result, there is no pole for the magnetic compass with which to point. . An electric motor, however, works on the moon because the motor generates both magn ( Full Answer )

# Driver side electric window fell into door motor works but no window?

"Fallen" Car Windows . That condition means that the mechanical connection between the window and the lift drive motor has become disconnected . . Different vehicles, and even different year models of the same vehicles, use different methods to make this connection. . All of the "old" vehicles ( Full Answer )

# How an electric motor from electric generator?

Electric motors take electric energy and turn it into kinetic energy Generators and alternators take mechanical energy n turn it into electric energy

# How do electrical generators and motors work?

The princible is very simple: "Whenever the current carrying coil placed in the magnetic field, the coil will experience the mechanical force"

# Can you change the RPMs of an electric motor?

yes, you can. in A/C motor rps(rev/sec) is N(rps)= f/p where f is the frequency and p is the number of pair poles. By increasing or decreasing the frequency the rps will change accordingly. By having less or more pair poles the rps will be increased or reduced. the more pair poles the lower will be ( Full Answer )

# How do you turn an electric motor into an electric generator?

The simple answer is: You start with a motor with permanent magnets and then simply turn the output shaft by hand and you will get current from the power input of the motor. However, there are AC and DC motors. Whether you are using a DC motor to charge a battery or an AC motor to power a tool, you ( Full Answer )

# Which change occurs in an electric motor?

Electrical energy is used to create a electromagnet with alternating poles. These alternating poles will cause another magnet with constant poles attached to an armature to turn and create mechanical energy.

# How do you measure rpm of electric motor?

Two methods, one uses a dial that is held in the center of the revolving shaft and is directly read off of the dial face. The second method uses a strobe light. The light is focused on the shaft and the dial on the strobe is turned until it looks like the shaft has come to a stand still. The RPM is ( Full Answer )

# Neither rear electric window on your o3 Honda crv works there is no sound from the motors?

The power windows are all on the same circuit, so it probably is not the fuse. Check to see if your CR-V is equipped with a rear window safety lockout, that the driver can activate, to prevent kids from operating them and check to see if the switch is in the proper position. If it is, then my next s ( Full Answer )

# How does an electrical motor in an electrical scooters work?

just synopsis to explain either its AC or DC motor there exsist a battery for power supply, ac can be generated using a inverter circuit and iginition is at key accelerator is a potentio-meter by which you can contorl the supply to the motor better google it for more precise explanation ( Full Answer )

# What is the main purpose of an electric motor?

to help people with electricity. Without it you wouldn't have thelight or lamps at your house.

# Can you use an electric motor as a dynamo?

Yes, but it is not advisable to pass the free run speed of the motor at maximum voltage. (might overheat)

# How does electric servo motor brake work?

break is connected with parallel to motor winding if the brake is d.c. is supply it must be connected with rectifier unit,when motor in ideal position the brake holds the shaft which is connected with gear and when motor starts the break coil will energise and motor shat became free and motor will r ( Full Answer )

# What is the overheating voltage of an electric motor?

Motors overheat due to excessive current, not necessarily voltage. Normal voltage can cause a motor to overheat if it is stuck (not spinning). The problem is not usually the voltage, but whatever is causing excessive current flow (usually because the motor is not spinning like it is supposed to).

# Can an electric motor be made to generate electricity?

For some kinds of electric motors - not all kinds - the answer is yes. It is hard to explain the reasons using very simple terms, but here goes: Most small direct current electric motors that have stators which are made of permanent magnets can be made to generate direct current electricity wh ( Full Answer )

# How does an electric motor fan work?

An electromagnet is the basis of an electric motor. You can understand how things work in the motor by imagining the following scenario. Say that you created a simple electromagnet by wrapping 100 loops of wire around a nail and connecting it to a battery. The nail would become a magnet and have a n ( Full Answer )

# How does the centrifugal switch work in a single phase electric motor?

In a single phase electric motor, the centrifugal switch allows the start winding to be energized through the start capacitor when the motor is starting. This gives an out of phase magnetic field that, along with the in phase magnetic field from the run winding, helps the rotor to begin spinning. On ( Full Answer )

# How are electric generators different from electric motors?

They both use the same parts, but work differently in the way electricity is applied to them. The basic components of each are a stator (stationary part), a rotor (rotating part), and a wire coil. In an electric generator, the rotor is mechanically driven by an armature and has a wound wire coil ( Full Answer )

# Would aluminum on a simple electric motor work?

If you are referring to the use of aluminium windings, instead of copper windings, then the answer is yes. However, because aluminium has a higher resistivity than copper, to produce the same rating as a copper-wound machine, the aluminium conductor would require a slightly larger cross-sectional ar ( Full Answer )

# Is steper motor can work without electrical energy?

The correct name is Stepper motor, or Step motor. No, the whole idea lf the Stepper motor is that it works with electricity. Also, the whole idea of motors is to convert energy, so it must use SOME type of energy.

# What electrical devices use an electric motor?

fans, air conditioners, some ovens, hair dryers, computers, space heaters, microwaves, some freezers, projectors, amplifiers, dvd-s, blenders, cd players, VCR-s, printers, scanners, washing machines and dryers, electric lawn mowers, grass trimmers, drills, electric saws, turn tables, And i can't re ( Full Answer )

# Can a motor works as a dynamo I'mean produce electricity?

No because it requires excitation case of dynamo it has already permanent magnets it doesn't require any excitation but in Motor we cant,

# How does a contactor work on an electric motor?

With a contactor we can control the power connection to the motor (power on/off). A typical AC contactor comes with 4 terminals aside (L1,L2,L3,A). 'A' has A1,A2 terminals which are of the magnetizing coil. By magnetizing & demagnetizing A1-A2 coil, power line connections to motor can either be ma ( Full Answer )

# What is the working principle of an electric motor?

The electric motor is a device that converts electrical energy tomechanical energy. There are three main types of electric motors: 1) DC Motor 2) Induction Motor 3) Synchronous Motor. All of these motors work under more or less the same principle. TheWorking of an electric motor mainly depends upon ( Full Answer )

# How does an electric fan motor works?

In the simplest design, there are only two parts to consider. TheArmature, and the Stator. The armature is the part that revolves,and the fan blades are attached to its shaft. It is made of apermanent magnet. The stator consists of copper windings thatconduct electrical input (AC) and generates a ro ( Full Answer )