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19. The parallel combination of a 470 Ω resistor and a 1.5 kΩ resistor is in series with the parallel combination of five 1 kΩ resistors. The source voltage is 50 V. The percentage of the load current through any single 1 kΩ resistor is ________.
(a) 25%
(b) 20%
(c) 100%
(d) 50%
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