currents
one-directional flow of electric charge.
direct current
a region within a magnetic material
magnetic domain
circuit without branches
parallel circut
a device that converts motor power to electric energy
generator
rate of doing work or delivering energy
power
an electric current which periodically reverses direction
alternating current
a vector field that describes the magnetic force on moving objects
magnetic field
circuits with no branches
series circuit
a machine that converts electrical energy to mechanical energy
motor
the pressure from an electrical circuit
voltage
a periodic current which changes in value but never changes direction
pulsating current
the magnetic field that extends from the Earth's interior out into space
magnetic poles
circuit is composed of individual electronic components
electrical circuit
objects or type of material that allows the flow of charge in one or more directions.
conductor
states that the current through a conductor between two points is directly proportional to the voltage across the two points
ohms law
a stream of charged particles, such as electrons or ions
electric current
attraction or repulsion that arises between electrically charged particles because of their motion
magnetic force
an electrical circuit that allows a current to travel along an unintended path
short circuit
a electrical component that resist electric currents
resistor
unit of electrical potential, potential difference and electromotive force
volt
any type of current that changes not only periodically, but also randomly.
variable current
the highest possible holding power of a magnet
magnetic pull force
a circuit that isn’t complete.
open circuit
generating electrical current in a conductor by placing the conductor in a changing magnetic field
induction
the base unit of electrical current.
amphere