A 52-ohm and a 30-ohm resistors are connected in parallel, and the combination is connected across a 280-V dc line. Part A What is the resistance of the parallel combination? Express your answer with the appropriate units. R = Part B What is the total current through the parallel combination? Express your answer with the appropriate units. I = Part C What is the current through the 52-ohm resistor? Express your answer with the appropriate units. I = Part D What is the current through the 30-ohm resistor? Express your answer with the appropriate units. I =