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23. Two 0.68 μF capacitors are connected in series across a 10 kHz sine wave signal source. The total capacitive reactance is ________.
(a) 46.8 Ω
(b) 4.68 Ω
(c) 23.41 Ω
(d) 11.70 Ω
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- 5555555555 6. A 15 Ω resistor, an inductor with 8 Ω inductive reactance, and a capacitor with 12 Ω capacitive reactance are in parallel across an ac voltage source. The circuit impedance is ________. (a) 12.7 Ω (b) 127 Ω (c) 4,436 Ω (d) 6,174 Ω
- 5555555555 9. A 47 Ω resistor and a capacitor with 150 Ω of capacitive reactance are in series across an ac source. The impedance, expressed in rectangular form, is ________. (a) Z = 47 Ω + j150 Ω (b) Z = 47 Ω – j150 Ω (c) Z = 197 Ω (d) Z = 103 Ω
- 5555555555 13. What is the capacitance when Q = 60 μC and V = 12 V? (a) 720 μF (b) 5 μF (c) 50 μF (d) 12 μF