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1. A battery in a circuit has an emf of 8.8 V. The only other component in the circuit is a resistor. 4.4 A of current flows in the circuit. What must the resistance of the resistor be? 2. A 15.0 ? and 25.0 ? resistor are in series with a battery. The potential difference across the 15.0 ohm resistor is 4.50 V. What is the potential difference across the battery?

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