science ch. 15

flow of electrons or other charged particles from one place to another

what is the SI for with the "force" with which an electric current flows

Formula to find power used when given voltage and current

electricity that flows only in one direction

Electricity that continually alternates direction

SI unit for measuring the amount of current

materials through which current flows easily

materials through which current does not easily flow

amount a certain object hinders electron flow

what unit is used to measure resistance quantity

a material that allows current to flow through it with no resistance at all

an electrical device designed to add resistance to a circuit

what law states that current flowing through a conductor is directly proportional to the voltage and inversely proportional to the resistance

voltage = current x resistance

rate of charge flow

four factors affecting resistance of a conductor

heat produced by electric friction

three parts of a simple electric circuit

a circuit that contains a complete path for a current to flow through

a circuit that contains a gap that the electrons cannot pass

dangerous situation that occurs if electricity takes a "short cut" through the circuit

narrow strip of metal housed in a protective, insulated case and protects against excessive current

what type of circuit has its load arranged so that the electric current flows through each load one after another

circuit which has the loads arranged in separate branches so the current is divided among them

what was the first type of electric light suitable for house hold use

what produces light by passing an electric current through a long tube filled with a low-pressure mixture of mercury vapor and argon

a simple device that converts electricity to a back and forth motion

device for communicating over long distance by means of electro magnets

most important device for converting electricity into motion

rotating electromagnet that aligns with the poles of the field magnet

group of electrochemical cells connected together as a single source of current

device that uses electromagnetic induction to produce electricity

semiconductor that emits light when a direct electric current is applied

LED:

an electrical switch operated by an electromagnet

converts pulses of electricity into sound waves

ability of magnetism to convert mechanical motion into electrical current

device that increases or decreases the voltage of an alternating current using electromagnetic induction

three ways to increase strength of an electromagnetically induced current

what generator uses a fluid as a moving conductor

unit used by electric companies used to charge for electricity

name of the current for electric current that flows in both directions