A simple electric motor can be built using a coil of wire that is free to rotate between two opposite magnetic poles. When an electric current flows through the coil, the coil experiences a force and moves. … When the electric current changes direction, the same end of the electromagnet becomes its south pole.
How does a DC motor work GCSE?
Electric motors use the forces produced by magnetic fields to produce a turning motion. If you put a length of wire in a magnetic field and pass a DC current through it (such as from a battery), the wire will move. an axle for the coil of wire to spin around. …
How does a DC electric motor work?
Electric motors turn electricity into motion by exploiting electromagnetic induction. The motor features a permanent horseshoe magnet (called the stator because it’s fixed in place) and an turning coil of wire called an armature (or rotor, because it rotates). …
How does an electric motor work simple?
This simple electric motor works by the magnetic force F = IL x B. The current goes around the coil so that it points one direction in one end of the loop and in the other direction at the other end of the loop. The magnetic field at both of these spots points in the same direction.
How can a magnet make a DC motor?
Set one neodymium magnet on top of the battery, in the center. Position the armature in the paper clip loops, with the shiny, uncolored side touching the paperclips. Make sure it doesn’t touch the magnet. If your motor doesn’t start immediately, try giving it a start by spinning the wire bundle.
What happens if you add more magnets to a DC motor?
Increasing the strength of the magnet will drive more of the steel into saturation. How much and what affect it will have depends on the motor and how much you change your magnet by. But you will increase Kt, which means for a given torque, your current will be lower. And your speed will be lower.
What is DC motor with diagram?
The input of a brushless DC motor is current/voltage and its output is torque. Understanding the operation of the DC motor is very simple from a basic diagram is shown below. DC motor basically consists of two main parts. The rotating part is called the rotor and the stationary part is also called the stator.
What are the 6 parts of an electric motor?
These six components include:
- 1) The Rotor. The rotor is the moving part of your electric motor. …
- 3) The Bearings. The rotor in your electric motor is supported by bearings, which allow it to turn on its axis. …
- 4) The Windings. …
- 5) The Air Gap. …
- 6) The Commutator. …
- What Do All of These Components Have in Common?
What are the applications of DC motor?
Applications. DC motors are suitable for many applications – including conveyors, turntables and others for which adjustable speed and constant or low-speed torque are required. They also work well in dynamic braking and reversing applications, which are common in many industrial machines.
How do you start a DC motor?
DC series motor starter
The start arm is simply moved towards right to start the motor. Thus, maximum resistance is connected in series with the armature during starting and then gradually decreased as the start arm moves towards right. This starter is sometimes also called as a 2 point starter.
What is electric motor with diagram?
An electric motor is a device that converts electrical energy into mechanical energy. Diagram: Electric motor. Working of an electric motor: An electric motor works on the principle of magnetic effect of electric current. In an electric motor, a rectangular coil ABCD in placed between two magnets in poles N and S.
What are the main parts of electric motor?
The components of an electric motor may include a rotor, thin sheets of stacked metal called laminations, a stator, wire windings, magnets, a commutator, brushes, poles, electrical interconnects and a housing.
What materials do you need to make an electric motor?
- D battery.
- Insulated 22G wire.
- 2 large-eyed, long, metal sewing needles (the eyes must be large enough to fit the wire through)
- Modeling clay.
- Electrical tape.
- Hobby knife.
- Small circular magnet.
- Thin marker.
How do you check voltage on a DC motor?
A simple model for a DC motor is V=R∗i+e, where V is the terminal voltage, R is the motor resistance, and e is the back-emf voltage.
How do you make a dc motor spin faster?
One easy way to make the motor run faster is to add another magnet. Hold a magnet over the top of the motor while it is running. As you move the magnet closer to the spinning coil, one of two things will happen. Either the motor will stop, or it will run faster.