A car is driven at night. In a journey, the total charge that passes through the 12V battery is 270kC. Calculate the electrical energy transferred.
Question
A car is driven at night. In a journey, the total charge that passes through the 12V battery is 270kC. Calculate the electrical energy transferred.
Solution
The electrical energy transferred can be calculated using the formula:
E = QV
where: E is the electrical energy, Q is the charge, and V is the voltage.
Given: Q = 270kC = 270,000 C (since 1kC = 1000C) V = 12V
Substituting the given values into the formula, we get:
E = 270,000 C * 12V = 3,240,000 Joules or 3.24 MJ (since 1J = 10^-6 MJ)
So, the electrical energy transferred is 3.24 MJ.
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