Units
SI unit of current flow
ampere
semiconductor that emits light when a direct electric current is applied
light-emitting diode
circuit that contains a gap that electrons cannot cross is
open
direct
automatic switch that opens circuit when it exceeds amount
circuit breaker
ohm
type of lamp that produces light by passing an electric current through a long tube filled with low-pressure mercury vapor
fluorescent lamp
circuit with loads arranged in separate branches of the circuit so that the current is divided among them
parallel
a wire moving in a magnetic field generates no current if it travels this way to the lines of flux
parallel
converts pulses of electricity into sound waves
loudspeaker
SI unit to measure the force which electrons flow
Volt
lamp that produces light by heating a filament until it glows
incandescent
electricity takes a shortcut in this dangerous situation
short circuit
a material that allows electric current to flow through it with no resistance
superconductor
houses a small metal strip that breaks to halt excessive current
fuse
electric companies charge in these
kilowatt-hour
type of material through which current does not flow easily
insulator
IF the current in a circuit increases the power
decreases
the commutator is only part of this type of motor
DC
group of electrochemical cells connect as a single source of electricity
battery
energy expended to overcome electrical friction is converted to this
Joule heat
rate at which charge flows
current
how can you find the total voltage in a series circuit
sum of the loads individual voltages
arranging electrochemical cells in parallel cause the voltage to do this
remain the same
uses electromagnetic induction to produce electric current
generator