that depends on,motor size, number of coils, company,and wire gauge. you can make a simple dc motor with just 10 winding or less. it would be very low on torque and speed though.
To state it simply, a DC brushless motor is not a DC motor. It is an AC motor with an inverter (or electronic commutator) on the front end to make the AC, so you can use a DC input.
To make a simple power generator for a standard 7 project, you can use a small DC motor, a LED light, and some wires. First, attach the motor to a sturdy base, then connect the motor's terminals to the LED. When you spin the motor's shaft, it generates electricity and lights up the LED. You can use a hand-crank or a fan to turn the motor, demonstrating how mechanical energy can be converted into electrical energy.
The speed control of the DC motor is important because its speed can be changed over a wide variety of simple methods which is not possible in an AC motor.
A DC generator is a DC machine that is driven by an external rotating force. It is constructed the same as a DC motor.
The link shows once consisting of a couple of paper clips, a length of insulated copper wire and a disc magnet.
It depends on how simple you want the robot to be. It could be as simple as a battery a DC motor and wheels or a simple robot with legs that are controlled with a micro-controller.
A DC shunt motor is a motor using DC supply with the the inductor connected parallel to the armature.
6V dc motor
A synchronous motor is an ac motor that does not run on dc.
Its a motor that will do some work if you feed it some DC voltage. Reversing the dc supply voltage polarity will make it run in a reverse direction. The electric windows in your car is a good example of a DC motor's usefulness. The window up-down switches simply reverses the + and - polarity of the 12 volt vehicle supply to the window motor to make it take the window up or take it down.
Yes, provided its a stationary field type generator and it has split rings on its armature. take a general dc motor used in tape recorders and observe it. it you give supply, its a dc motor if you rotate it by the help of other and take the output from its leads its a dc generator thats simple