Series and Parallel Circuit Problem

AI Thread Summary
To find the battery voltage in a circuit with a 54 ohm resistor and a 23 ohm resistor in series, apply Kirchhoff's voltage law and Ohm's law. The current through the resistors is 0.13 A, allowing for the calculation of voltage across each resistor. The total voltage from the battery is the sum of the voltages across both resistors. The correct application of these laws leads to the accurate determination of the battery voltage. The problem was successfully resolved with community assistance.
moonlit
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I have a problem that I'm working on, not sure what equation to use for this:

The current in a 54 ohm resistor is 0.13 A. This resistor is in series with a 23 ohm resistor, and the series combination is connected across a battery. What is the battery voltage?
 
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Use Kirkhoff's voltage law (loop: resistor1 - resistor2 - battery) and Ohm's law (V = IR).
 
Ok, I got the answer correct. Thanks for your help!
 
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