Power = Current *Voltage
You already have the current, but not the voltage.
But you are given resistance, and you know that
Voltage=Current*Resistance
Therefore
V=I*R=4*12=48V
So you have 48V
Now you can figure out the Power
P=I*V=4*48=192W
Therefore you have 192W.
hope this helps
The total power in a circuit is 192W.
Power exists at the time rate of excess or absorbing energy. The power delivered or absorbed by an element exists as the product of the current flowing through the component and the voltage across the element. Power exists estimated in watts. If the power exists positive then it exists absorbed by the component and if it exists negative then it is supplied by the element.
Power = Current [tex]*[/tex] Voltage
We have the current, but not the voltage.
But you are given resistance, and you know that
Voltage = Current [tex]*[/tex] Resistance
Therefore,
[tex]V=I*R=4*12=48V[/tex]
So you have 48V
Thus, we get the Power
[tex]P=I*V=4*48=192W[/tex]
Therefore, the total power in a circuit is 192W.
To learn more about power
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