10. A 200 Ω resistor, a coil with 30 Ω of reactance, and a capacitor of unknown reactance are in series across an ac source. The circuit is at resonance. Circuit impedance ________.
(a) is 230 Ω (b) is 170 Ω (c) is 200 Ω (d) cannot be determined
Answer
Answer : (c)
Explanation
Explanation : No answer description available for this question. Let us discuss.
5555555555 20. A 200 Ω resistor, a coil with 30 Ω of reactance, and a capacitor of unknown reactance are in series across an ac source. The circuit is at resonance. Circuit impedance ________. (a) is 230 Ω (b) is 170 Ω (c) is 200 Ω (d) cannot be determined
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 7. A 24 Ω resistor, an inductor with a reactance of 120 Ω, and a capacitor with a reactance of 120 Ω are in series across a 60 V source. The circuit is at resonance. The voltage across the inductor is ________. (a) 60 V (b) 660 V (c) 30 V (d) 300 V
5555555555 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
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