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what is does a parallel circuit have that a series circuit doesn't?
multiple paths for electricty to flow through
what do circuit diagrams show
shows the parts of the circuit uses lots of symbols
what is electric current measured in
amperes
what is voltage created by
created by chemical cells, generators, or solar cells
what is the electric field
area around a charge where electric force can be felt
what do series and parallel circuits both have
both get electricity to a certain place
what does the v mean in Ohms law?
v=ir
what is electric current
continuous flow of electrons
what is resistance
opposition to flow of electric charge measured in Ohms
law of conversation of charge
what does a circuit need in order to work
current is the flow of electrons (amps)
what are the 2 types of electric current
DC (direct current)
AC (reverse direction, alternating current)
what is resistance affected by
length,width,and temperature
can electrons be destroyed
no they can move around but are not destroyed
what does a series circuit have
what does the V mean in ohms law
definition of voltage
difference in electric potential energy
conductors vs insulators
conductor- allows electrons to flow metals, water w impurities in it
insulators- slow the electrons flow plastics, wood, rubebr, dry air
what is electric charge
physical property that causes particles or objects to attract or repel without touching
what does a paralell circuit have
multiple paths
what does the R mean in Ohms law
resistance
whats voltage measured in
what is electric force
force of attraction or repulsion depends on amount of charge and distance between charges
3 ways to transfer electricity
friction, conduction,direct contact