A battery has emf 30.0 V and internal resistance r. A 9.00 Ω resistor is connected to the terminals of the battery, and the voltage drop across the resistor is 27.0 V. What is the internal resistance of the battery?
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A battery has emf 30.0 V and internal resistance r. A 9.00 Ω
resistor is connected to the terminals of the battery, and the voltage
drop across the resistor is 27.0 V. What is the internal resistance of the
battery?
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