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
Answer
Answer : (d)
Explanation
Explanation : No answer description available for this question. Let us discuss.
Product Condition: No Defects; Kulshreshtha, D C (Author); English (Publication Language); 880 Pages - 07/01/2017 (Publication Date) - McGraw Hill Education (Publisher)
5555555555 1. A 10 Ω resistor, a 90 mH coil, and a 0.015 μF capacitor are in series across an ac source. The impedance magnitude at 1,200 Hz below fr is ________. (a) 1,616 Ω (b) 161 Ω (c) 3,387 Ω (d) 1,771 Ω
5555555555 18. A 1.2 kΩ resistor is in series with a 15 mH coil across a 10 kHz ac source. The magnitude of the total impedance is ________. (a) 152.6 Ω (b) 1,526 Ω (c) 1,200 Ω (d) 942 Ω
5555555555 21. A 90 Ω resistor, a coil with 30 Ω of reactance, and a capacitor with 50 Ω of reactance are in series across a 12 V ac source. The current through the resistor is ________. (a) 9 mA (b) 90 mA (c) 13 mA (d) 130 mA
5555555555 9. A 9 mH coil is in parallel with a 0.015 μF capacitor across an 18 kHz ac source. The coil's internal resistance, RW, is 60 Ω. The circuit impedance is ________. (a) 17,340 Ω (b) 1,734 Ω (c) 290 Ω (d) 1,018 Ω
5555555555 10. A 12 kΩ resistor is in series with a 0.02 μF capacitor across a 1.2 kHz ac source. If the current is expressed in polar form as I = 0.3 ∠0° mA, what is the source voltage expressed in polar form? (a) 45.6 V (b) 411.3 V (c) 0.411 V (d) 4.11 V