Question
Electric power is volts times amperes $(P=V i)$ When a car battery at $12 \mathrm{V}$ is charged with $6 \mathrm{A}$ for $3 \mathrm{h}$, how much energy is delivered?
Step 1
The power (P) is given by the formula $P=V \times i$, where V is the voltage and i is the current. In this case, V is 12V and i is 6A. So, we have: \[P = 12V \times 6A = 72W\] Show more…
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