Answer:31.3W
Explanation: JUST A FORMULA
P = V*V/R = 120*120/460 = 31.3W
the power which is used by the toaster when plugged into 120 V outlet having resistance of 460 ohm, is 31.3 W.
Explanation:
The toaster is given to be plugged into a 120 V outlet. The power it uses can be calculated using the following method,
Given that Voltage V=120 V
Resistance R=460 ohm
As we know that,
[tex]\text { Power }=\text { Voltage } \times \text { Current }[/tex]
[tex]\text {And Current}=\frac{\text {Voltage}}{\text {Resistance}}[/tex]
[tex]\text { therefore, Power }=\text { Voltage } \times \text { Current }=\text { Voltage } \times \frac{\text { voltage }}{\text { Resistance }}[/tex]
[tex]\text { Power }=\frac{\text { Voltage }^{2}}{\text { Resistance }}[/tex]
Substituting the values, we get,
[tex]\text { Power }=\frac{120 \times 120}{460}=\frac{14400}{460}=31.3 \mathrm{Watts}[/tex]
Therefore, the power which is used by the toaster when plugged into 120 V outlet having resistance of 460 ohm, is 31.3 W.
