Explanation:
It is given that,
Power consumed by toaster oven, [tex]P=1.4\ kW[/tex]
Time taken, t = 6 minutes = 0.1 hour
Energy used by toaster, [tex]W_{toaster}=P\times t[/tex]
[tex]W_{toaster}=1.4\ kW\times 0.1\ h=0.14\ kWh[/tex]
Similarly,
Power consumed by toaster oven, [tex]P=11\ W[/tex]
Time taken, t = 9 minutes = 0.15 hour
Energy used by toaster, [tex]W_{toaster}=P\times t[/tex]
[tex]W_{toaster}=11\ W\times 0.15\ h=1.65\ Wh=0.0016\ kWh[/tex]
Hence, this is the required solution.
