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Svetradugi [14.3K]

4 years ago

14

How much power is used by a 12.0-v car battery that draws 0.5 a of current?

1 answer:

tigry1 [53]4 years ago

3 0

The electric power used by the car battery is given by
$P=VI$

where
V is the voltage of the battety
I is the current
P is the electric power.

For the battery in our problem, the voltage is V=12.0 V while the current intensity is I=0.5 A, so the power used by the battery is
$P=VI=(12.0 V)(0.5 A)=6.0 W$

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