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dirac (pd5546) – Hw19 – Gavrin – (10251) 1 This print-out should have 13 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 007 (part 3 of 3) 10.0 points Find the amplitude of the voltage across the inductor at resonance. Answer in units of V. 001 (part 1 of 2) 10.0 points In the purely inductive circuit in the figure below, the inductance is 14 mH and the rms voltage is 125 V. 14 mH 008 (part 1 of 2) 10.0 points A 44.2 Ω resistor is connected in series with a 16.7 µF capacitor and a 60 Hz, 140 V source. Find the current in the circuit. Answer in units of mA. Erms = 125 V S E = Emax sin ωt Find the inductive reactance if the frequency is 44.5 Hz. Answer in units of Ω. 002 (part 2 of 2) 10.0 points Find the rms current in the circuit. Answer in units of A. 003 (part 1 of 2) 10.0 points In a certain series RLC circuit, the rms current is 12.4 A , the rms voltage is 228 V and the current leads the voltage by 37◦ . What is the total resistance of the circuit? Answer in units of Ω. 004 (part 2 of 2) 10.0 points Calculate the reactance XL − XC of the circuit. Answer in units of Ω. 005 (part 1 of 3) 10.0 points An AC power supply with a maximum potential of 76 V is across a series RLC circuit, where the inductance is 17 mH, the capacitance is 90 nF, the resistance is 29 Ω. Find the resonant frequency. Answer in units of kHz. 006 (part 2 of 3) 10.0 points Find the amplitude of the current at the resonant frequency. Answer in units of A. 009 (part 2 of 2) 10.0 points What is value of the inductor that must be inserted in the circuit to reduce the current to one-half the previous current? Answer in units of H. 010 (part 1 of 2) 10.0 points A particular inductor has appreciable resistance. When the inductor is connected to a 17 V battery, the current in the inductor is 2.73 A. When it is connected to AC source with an rms output of 17 V and a frequency of 51 Hz, the current drops to 1.98 A. Find the impedance at 51 Hz. Answer in units of Ω. 011 (part 2 of 2) 10.0 points Find the inductance of the inductor. Answer in units of mH. 012 (part 1 of 2) 10.0 points In a series RLC circuit, the resistance is 46 Ω, the capacitance is 80 µF and the inductance is 53 mH. The AC generator provides an rms voltage of 100 V operating at 700 rad/s. Find the power supplied by the source. Answer in units of W. 013 (part 2 of 2) 10.0 points Find the power dissipated in the resistor. Answer in units of W.