Resistors in series are
connected in line.
The same current flows
through them all.
The total opposition to
the flow of current is
called the EQUIVALENT
resistance.
To find the value of the
equivalent resistance we
simply add the values.
In this case it is 30
ohms.
Note that, as a quick
check on calculations,
the value of the
equivalent resistance is
always higher than the
value of the highest
value resistance.
If these resistors were
connected across a 30
Volt battery then Ohms
Law says 1 amp would
flow. |