Mathematics · Battery and Charging
A discharged battery is charged at 6 A for 3 hours after which it is discharged through a resistor of R Ω. If the discharge period is 7 hours and the terminal voltage remains fixed at 12 V, what is the value of R approximately, assuming the Ah efficiency of the battery is 85%?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 19.72 Ω
- 27.62 Ω
- 35.49 Ω✓
- 43.37 Ω
Correct answer
5.49 Ω
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