Physics, 30.05.2020 19:03 Chrisis9987

A resistor with an unknown resistance is connected in parallel to a 13 Ω resistor. When both resistors are connected in parallel to an emf source of 23 V, the current through the unknown resistor is measured with an ammeter to be 4 A. What is the resistance of the unknown resistor? Answer in units of Ω.

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