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19. A 320 μH coil is in series with a 3.3 kΩ resistor. How long does it take for current to build up to its full value?
(a) 0.48 s
(b) 0.48 ms
(c) 0.48 μs
(d) 48 s
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5555555555 6. The parallel combination of a 6.8 kΩ resistor and a 10 kΩ resistor is in series with the parallel combination of a 2.2 kΩ resistor and a 1 kΩ resistor. A 100 V source is connected across the circuit. The resistor(s) with the greatest voltage drop is (are) ________. (a) 6.8 kΩ (b) 2.2 kΩ (c) 6.8 kΩ and 10 kΩ (d) 2.2 kΩ and 1 kΩ