What causes a copper wire motor to loop?
When the loop of wire is in a vertical plane, the forces on the top and bottom wires of the loop will be in opposite directions. These oppositely directed forces produce a twisting force, or torque, on the loop of wire that makes it turn.
Can a magnet damage a motor?
A strong magnetic field, however, can damage mechanical components of the hard drive. A magnet can, for instance, block the motor of the reading head.
What happens if you add more magnets to a DC motor?
Adding stronger magnets can affect a DC motor. Increasing the strength of the DC motor’s magnet will increase the amount of magnetic force generated per Amp of current flow.
What happened to the DC motor when you flipped the magnet located under the armature?
The flip causes the electromagnet to complete another half turn of motion. If the field of the electromagnet were flipped at precisely the right moment at the end of each half turn of motion, the electric motor would spin freely.
What causes a motor to spin?
They operate using principles of electromagnetism, which shows that a force is applied when an electric current is present in a magnetic field. This force creates a torque on a loop of wire present in the magnetic field, which causes the motor to spin and perform useful work.
How does a homemade DC motor work?
A simple DC motor uses a stationary set of magnets in the stator, and a coil of wire with a current running through it to generate an electromagnetic field aligned with the centre of the coil. One or more windings of insulated wire are wrapped around the core of the motor to concentrate the magnetic field.
What is the strongest magnet in the world?
The strongest permanent magnets in the world are neodymium (Nd) magnets, they are made from magnetic material made from an alloy of neodymium, iron and boron to form the Nd2Fe14B structure.
Do purse magnets hurt cell phones?
So, there will be no issues at all with the magnets that your phone is likely to come into contact with during everyday use such as those in magnetic cases or cradles or on your purse or handbag. This magnet will not damage your phone.
What causes a motor to rotate?
A coil of wire carrying a current in a magnetic field experiences a force that tends to make it rotate. This effect can be used to make an electric motor.