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A 36 Ω component is connected to a 12 V battery. How much energy is expended per second? answer in:______W
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A 36 Ω component is connected to a 12 V battery. How much energy is expended per second? answer in:______W

User Tanisa
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In order to calculate the power consumed by the component, we can use the formula below:


P=(V^2)/(R)

If the voltage is 12 V and the resistance is 36 ohms, the power is:


P=(12^2)/(36)=(144)/(36)=4\text{ W}

Therefore the power (energy per second) is 4 W.

User Julie L
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