11. A 6.8 kΩ resistor, a 7 mH coil, and a 0.02 μF capacitor are in parallel across a 17 kHz ac source. The coil’s internal resistance, Rw, is 30 Ω . The equivalent parallel resistance, Rp(eq), is ________.
(a) 1,878 Ω (b) 18,780 Ω (c) 18,750 Ω (d) 626 Ω
Answer
Answer : (b)
Explanation
Explanation : No answer description available for this question. Let us discuss.
14. 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
Answer
Answer : (d)
Explanation
Explanation : No answer description available for this question. Let us discuss.
15. A certain series RLC circuit with a 200 Hz, 15 V ac source has the following values: R = 12 Ω, C = 80 μF, and L = 10 mH. The total impedance, expressed in polar form, is ________.
5555555555 21. A 120 Ω load is connected across a voltage source with VS = 12 V and RS = 8 Ω. The voltage across the load is ________. (a) 11.25 V (b) 0 V (c) 12 V (d) 1.13 V
AC Circuits » Exercise - 18. A series AC circuit has a resistance of 12 Ω and reactance 5 Ω. The impedance of circuit is : (a) 5 Ω (b) 12 Ω (c) 13 Ω (d) 17 Ω
5555555555 19. A 47 Ω resistor and a capacitor with a capacitive reactance of 120 Ω are in series across an ac source. What is the circuit impedance, Z? (a) 129 Ω (b) 12.9 Ω (c) 167 Ω (d) 73 Ω
5555555555 32. A certain voltage source has the values VS = 30 V and RS = 6 Ω. The values for an equivalent current source are ________. (a) 5 A, 6 Ω (b) 30 A, 6 Ω (c) 5 A, 30 Ω (d) 30 A, 5 Ω
5555555555 22. A 120 Ω load is connected across an ideal voltage source with VS = 12 V. The voltage across the load ________. (a) is 0 V (b) is 12 V (c) is 120 V (d) cannot be determined