Description 71. The circuit emf Battery ε = 120 V, the resista
71. The circuit emf Battery ε = 120 V, the resistance R3 = 30 Ohms, R2 = 60 ohms. The ammeter shows the current I = 2 A. Find the power P, stand in the resistance R1. Resistance of the battery and the ammeter neglected.
Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)