Given:
the voltage of the battery is
[tex]V=12\text{ V}[/tex]The current is,
[tex]I=2.0\text{ A}[/tex]Required: Power used by the lamp
Explanation:
the power is given by
[tex]P=VI[/tex]Plugging all the values in the above formula, we get:
[tex]\begin{gathered} P=12\text{ V}\times2\text{ A} \\ P=24\text{ watt} \end{gathered}[/tex]Thus, the power used by the lamp is 24 watt.