Find internal resistance of a battery

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Resistor R1=10.0 Ohm is connected in parallel to a series combination of R2=4.0 Ohm and R3=4.0 Ohm. The combination of three resistors is connected to a real battery of emf of 12.0 V. Find internal resistance of a battery if current through resistor R2 is 0.30 A. Give answer in Ohms.

Reference no: EM132567936

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