If a combination of three 30.0 ohm resistors received energy at the rate of 3.20 W when connected to a 12.0 V battery, how are the resistors connected?
The power
dissipated by a circuit
of total resistance
connected across a
battery of voltage
is

Solving for
,

Substituting
and
we get

The circuit is a combination of
and
resistors in
series.
can be
obtained by a parallel combination of two
resistors.

If a combination of three 30.0 ohm resistors received energy at the rate of 3.20 W...
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