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Physics, 09.02.2021 01:10 delanieloya

Flag A parallel combination of an 10 resistor and an unknown resistor R is connected in series with a 13 resistor and a battery. This circuit is then disassembled and the three resistors are then connected in series with each other and the same battery. In both arrangements, the current through the 10 resistor is the same. What is the unknown resistance R

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