Question: A parallel combination of an 8- resistor and an unknown resistor R is connected in series with a 16- resistor and a battery. This circuit

A parallel combination of an 8-Ω resistor and an unknown resistor R is connected in series with a 16-Ω 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 8-Ω resistor is the same. What is the unknown resistance R?

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