Problem 1CQ: For a series ac R-L-C circuit, (a) why do the voltage amplitudes not obey the equation V = VR + VL +... Problem 2CQ Problem 3CQ Problem 4CQ: At high frequencies, a capacitor becomes a short circuit. Discuss why this is so. Problem 5CQ Problem 6CQ: The current in an ac power line changes direction 120 times per second, and its average value is... Problem 7CQ: Electric-power companies like to have their power factors as close to unity as possible. Why? Problem 8CQ Problem 9CQ: When a series-resonant circuit is connected across a 120 V ac line, the voltage rating of the... Problem 10CQ: Is it possible for the power factor of an R-L-C ac series circuit to be zero? Justify your answer on... Problem 11CQ: During the last quarter of the 19th century, there was great and acrimonious controversy over... Problem 12CQ: In an ac circuit, why is the average power delivered to a capacitor or an inductor equal to zero,... Problem 1MCP: A piece of electrical equipment in an ac circuit draws a root-mean-square current of 5.00 A. The... Problem 2MCP: A light bulb is the resistance in a series R-L-C circuit having an ac voltage source v = V cos t. As... Problem 3MCP: A series R-L-C ac circuit with a sinusoidal voltage source of angular frequency has a total... Problem 4MCP: In a series R-L-C circuit powered by an ac sinusoidal voltage source, which phasor diagram best... Problem 5MCP: In a series R-L-C circuit powered by an ac sinusoidal voltage source, which phasor diagram best... Problem 6MCP: In a series R-L-C circuit powered by an ac sinusoidal voltage source, which phasor diagram best... Problem 7MCP: A series circuit contains an inductor, a resistor, a capacitor, and a sinusoidal voltage source of... Problem 8MCP Problem 9MCP: If the root-mean-square currant in an ac circuit is 10.0 A, the current amplitude is approximately... Problem 10MCP: In a series R-L-C circuit, the voltage source produces an angular frequency . If this frequency is... Problem 11MCP: In an R-L-C ac series circuit, if the resistance is much smaller than the inductive or capacitive... Problem 12MCP: In a series R-L-C ac circuit at resonance, A. the impedance is zero. B. the impedance has its... Problem 1P Problem 2P: An electric motor is being powered with a voltage amplitude of 310 V at 60.0 Hz. The motor draws a... Problem 3P: A capacitance C and an inductance L are operated at the same angular frequency. (a) At what angular... Problem 4P: the angular frequency in part (a), and what is the reactance of each element? 4. (a) Compute the... Problem 5P: Circuit design. You are designing an amplifier circuit that will operate in the frequency range from... Problem 6P: A 2.20F capacitor is connected across an ac source whose voltage amplitude is kept constant at 60.0... Problem 7P: The voltage amplitude of an ac source is 25.0 V, and its angular frequency is 1000 rad/s. Find the... Problem 8P: Find the current amplitude if the self-inductance of a resistanceless inductor that is connected... Problem 9P: A sinusoidal ac voltage source in a circuit produces a maximum voltage of 12.0 V and an rms current... Problem 10P: A 65 resistor, an 8.0 F capacitor, and a 35 mH inductor are connected in series in an ac circuit.... Problem 11P: In an R-L-C series circuit, the rms voltage across the resistor is 30.0 V, across the capacitor it... Problem 12P: A 1500 resistor is connected in series with a 350 mH inductor and an ac power supply. At what... Problem 13P: (a) Compute the impedance of a series R-L-C circuit at angular frequencies of 1000, 750, and 500... Problem 14P: A 200 resistor is in series with a 0.100 H inductor and a 0.500 F capacitor. Compute the impedance... Problem 15P: A hair dryer is designed to produce 1200 W of heating power. It draws a maximum instantaneous... Problem 16P: A series R-L-C circuit is connected to a 120 Hz ac source that has Vrms = 80.0 V. The circuit has a... Problem 17P: The circuit in Problem 13 carries an rms current of 0.250 A with a frequency of 100 Hz. (a) What is... Problem 18P: A series ac circuit contains a 250 resistor, a 15 mH inductor, a 3.5 F capacitor, and an ac power... Problem 19P: An ac series R-L-C circuit contains a 120 w resistor, a 2.0 F capacitor, and a 5.0 mH inductor. Find... Problem 20P: (a) At what angular frequency will a 5.00 F capacitor have the same reactance as a 10.0 mH inductor?... Problem 21P: In an R-L-C series circuit, R = 150 , L = 0.750 H, and C = 0.0180 F. (a) What is the resonant... Problem 22P: You need to make a series ac circuit having a resonance angular frequency of 1525 rad/s using a 138 ... Problem 23P: A series circuit consists of an ac source of variable frequency, a 115 resistor, a 1.25 F... Problem 24P: In a series R-L-C circuit, R = 400 , L = 0.350 H, and C = 0.0120 F. (a) What is the resonance... Problem 25P: In a series R-L-C circuit, L = 0.200 H, C = 80.0 F, and the voltage amplitude of the source is 240... Problem 26P: In an R-L-C series circuit, R = 300 , L = 0.400 H, and C = 6.00 108 F. When the ac source operates... Problem 27GP: A solenoid has a resistance of 48.0 and an inductance of 0.150 H. If a 100 Hz voltage source is... Problem 28GP: A large electromagnetic coil is connected to a 120 Hz ac source. The coil has resistance 400 to, and... Problem 29GP: A parallel-plate capacitor having square plates 4.50 cm on each side and 8.00 mm apart is placed in... Problem 30GP: At a frequency 1, the reactance of a certain capacitor equals that of a certain inductor. (a) If the... Problem 31GP: An electrical engineer is designing an R-L-C circuit for use in a ham radio receiver. He is unsure... Problem 32GP: Consider the circuit sketched in Figure 22.22. The source has a voltage amplitude of 240 V, R = 150... Problem 33GP: In a series R-L-C circuit, the components have the following values: L = 20.0 mH, C = 140 nF, and R... Problem 34GP: (a) Show that for an R-L-C series circuit the power factor is equal to R/Z. (Hint: Use the phasor... Problem 35GP: In an R-L-C series circuit, the magnitude of the phase angle is 54.0, with the source voltage... Problem 36GP: In a series R-L-C circuit, R = 300 , XC = 300 , and XL = 500 . The average power consumed in the... Problem 37GP: In a series R-L-C circuit, the phase angle is 40.0, with the source voltage leading the current. The... Problem 38GP: A 100.0 resistor, a 0.100 F capacitor, and a 300.0 mH inductor are connected in series to a voltage... Problem 39GP: Consider the same circuit as in the preceding problem, with the source operated at an angular... Problem 40PP: Converting dc to ac. An individual cell such as an egg cell (an ovum, produced in the ovaries} is... Problem 41PP: If the electrode oscillates between two points 20 apart at a frequency of (5000/) HZ, what is the... Problem 42PP: Converting dc to ac. An individual cell such as an egg cell (an ovum, produced in the ovaries) is... Problem 43PP: Converting dc to ac. An individual cell such as an egg cell (an ovum, produced in the ovaries) is... format_list_bulleted