Question
Electric power is volts times amperes $(P=V i)$. When a car battery at $12 \mathrm{~V}$ is charged with 6 amps for $3 \mathrm{~h}$, how much energy is delivered?
Step 1
Here, $V$ is the voltage and $I$ is the current. Given that $V=12$ volts and $I=6$ amperes, we can substitute these values into the formula to get: \[P = 12 \times 6 = 72 \text{ watts}\] Show more…
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