Physics - Current Electricity Question with Solution | TestHub

Current in the circuit,
$I=\frac{E_{net}}{R_{net}}$
$\Rightarrow I=\frac{10-4}{6}=1 \mathrm{A}$

$\therefore$Power consumed by battery
$P=V\times I$
$\Rightarrow P=1\times 4=4 \mathrm{W}$