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5. A resistor of 3 kΩ, a 0.05 μF capacitor, and a 120 mH coil are in series across a 5 kHz, 20 V ac source. What is the impedance, expressed in polar form?
(a) 636 Ω
(b) 3,769 Ω
(c) 433 Ω
(d) 4,337 Ω
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