With 21 V applied, if R1 = 5 ohms, R2 = 35 ohms, and R3 = 14 ohms, what is the current in R2 if R1 is connected in series with the parallel circuit R2 and R3? A. 200 mA B. 400 mA C.600 mA D.800 mA 2. What is the total resistance of a circuit when R1 (7 kΩ) is in series with a parallel combination of R2 (20 kΩ), R3 (36 kΩ), and R4 (45 kΩ)? A.4 kΩ B.17 kΩ C. 41 kΩ D. 108 kΩ

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