73. In the circuit of Fig. 3 battery emf ε = 120 V

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73. In the circuit of Fig. 3 battery emf ε = 120 V, R1 = 25 Ohms, R2 = R3 = 100 ohms. Find the power allocated to the resistance R1. Battery resistance negligible.
Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)