A complete circuit contains two parallel-connected devices and a generator for providing the electromotive force. The resistance of the first device is 12 ohms, the resistance of the second device is 4 ohms, and the voltage developed by the generator is 40 V. What is the magnitude of the current flowing through the first device? A. 3.33 A B. 13.32 A C. 8 A D. 10 A
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A complete circuit contains two parallel-connected devices and a generator for providing the electromotive force. [ The resistance of the first device is 12 ohms, the resistance of the second device is 4 ohms, and the voltage developed by the generator is 40 V. The magnitude of the current flowing through the first device is 3.33 A. Solution: 40V = V1 =V2; Since V =IR I1 = V1/R1; I1 = (40V)/(12 ohms); I1 = 3.334 A(Amperes). ]
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