Answer Happy

Question 1 (15) 1.1. Note the following circuit elements: (1) resistors, (2) capacitors, and (3) inductors. Which of these elements uses no energy, on average, in an ac circuit? A) I only B) 2 only C) 3 only D) both 2 and 3 E) both / and 3 1.2. Which one of the following statements concerning the impedance of an RCL circuit is true? A) The impedance is dominated by the capacitance at low frequencies. B) The impedance is dominated by the resistance at high frequencies. C) The impedance depends only on the values of Cand L. D) The impedance depends only on the resistance. E) The impedance is independent of frequency. 1.3 A 220- resistor is connected across an ac voltage source V = (150 V) sin [2D(60 Hz)]. What is the average power delivered to this circuit? 12 A) 51 W B) 110 W C) 280 W D) 320 W E) 550 W