The battery charge is 194 kC with a voltage across its terminals of 12 V.
| September 29, 2021 | education
The battery charge is 194 kC with a voltage across its terminals of 12 V. Determine the energy required to charge the battery if its efficiency is 81%
Initial data: q (battery charge value) = 194 kC (194 * 10 ^ 3 C); U (voltage at the terminals of the accumulator battery) = 12 V; η (battery efficiency) = 81% (0.81).
The energy required to charge the battery is determined by the formula: W = q * U / 2η.
Calculation: W = 194 * 10 ^ 3 * 12 / (2 * 0.81) = 1437 * 10 ^ 3 J (1437 kJ).
Answer: To charge the battery, an energy of 1437 kJ is required.
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