Study Guide

10
Series and parallel circuits
Series and parallel circuits
Think about it!
Directly
connecting two
batteries together
makes it brighter!
Connecting the
same batteries in a
di󱐯erent way
makes a big
di󱐯erence!
Connecting
the batteries in a parallel
circuit doesn't make the
bulb any brighter than
when it was connected
to one battery!
It's called a
series circuit!
♦ When the miniature bulb is powered by a single battery.
♦ When one miniature bulb is powered by two batteries:
♦ When a miniature bulb is powered by two batteries in a parallel circuit.
With a single battery and a miniature
bulb, the miniature bulb is powered by
one battery.
When a miniature bulb is powered
by two batteries (using a series
circuit), it receives electricity from
both batteries.
It becomes twice as bright.
When a miniature bulb is powered by two batteries
(using a parallel circuit), it uses two batteries but
receives only one battery's worth of electricity.
But the batteries will power the bulb for twice as long.
It is
brighter.
The brightness is
the same.
The bulb stays on
as if only one
battery is used.
The bulb will stay on
for twice as long.