Question: We can model a certain battery as a voltage source in series with a resistance. The open-circuit voltage of the battery is 9 V.

We can model a certain battery as a voltage source in series with a resistance. The open-circuit voltage of the battery is 9 V. When a 115-2 resistor is placed across the terminals of the battery, the voltage drops to 5 V. Part A Determine the internal resistance (Thevenin resistance) of the battery. Express your answer to three significant figures and include the appropriate units. R= Value Submit Request Answer ? Units

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