A laptop charger has the label below on it.
a.[2]
Calculate the current in the charger when it is turned on.
Use the equation: \text{power} = \text{potential difference} \times \text{current}
Give your answer to 2 significant figures.
$\text{Current} = \text{–––––––––––––––– A}$
b.[3]
The charger is turned on for 45 minutes.
Calculate the energy transferred by the charger.
$\text{Energy used} = \text{–––––––––––––––– J}$