Magnetic fields do this when two similar sides come in contact.
What is repelling.
100
This helps one determine in which direction the magnetic field is applying its force.
What is the right hand rule.
100
These two traits can affect the strength of the electromagnet.
What is number of coils, and magnitude of the current.
100
This type of motor relies on the fact that like magnetic poles repel and unlike magnetic poles attract each other.
What is What is a dc motor.
100
Name one difference between dc motors and generators.
What is generators turn mechanical energy into electrical energy. Motors turn electrical energy into mechanical energy.
300
The magnetic influence of electric currents and magnetic materials identified by direction and magnitude.
What is magnetic field.
300
These create a magnetic field due to electric current.
What are moving electric charges.
300
This is voltage developed by any source of electrical energy such as a battery or dynamo.
What is an electromotive force.
300
This powers a DC motor by the repelling force of like poles and the attracting force of unlike poles.
What is an electromagnet.
300
This mechanism can be compared to a water pump, which causes the flow of water but does not actually ‘create’ the water flowing through it.
What is a generator.
500
When drawing imaginary lines to symbolize a magnetic field, the arrows would point this way on the south end of the magnet.
What is towards the South end.
500
(picture shows) B=muI/2πR, F=ILBsin0, F=qvBsin0
In this formula, this variable represents the magnitude of the magnetic field.
What is B.
500
The core of an electromagnet is composed of these small regions.
What is magnetic domains.
500
These are the main basic parts of a dc motor.
What is a commutator, Rotor Coils, stator magnets, brushes, and shaft.
500
He discovered that the flow of electric charges could be induced by moving an electrical conductor, such as a wire that contains electric charges, in a magnetic field.