Problem 15.1CYU: Check Your Understanding If a European ac voltage source is considered, what is the time difference... Problem 15.2CYU: Check Your Understanding Repeat Example 15.1 for an ac source of amplitude 20 V and frequency 100... Problem 15.3CYU: Check Your Understanding Find the voltages across the resistor, the capacitor, and the inductor in... Problem 15.4CYU: Check Your Understanding An ac voltmeter attached across the terminals of a 45-Hz ac generator reads... Problem 15.5CYU: Check Your Understanding Show that the tins voltages across a resistor, a capacitor, and an inductor... Problem 15.6CYU: Check Your Understanding In the circuit of Figure 15.11, L=2.0103H,C=5.0104F , and R=40 (a) What is... Problem 15.7CYU: Check Your Understanding What happens to the resonant frequency of an RLC series circuit when the... Problem 15.8CYU: Check Your Understanding The resonant angular frequency of an RLC series circuit is 4.0102 rad/s. An... Problem 15.9CYU: Check Your Understanding A transformer steps the line voltage down from 110 to 9.0 V so that a... Problem 1CQ: What is the relationship between frequency and angular frequency? Problem 2CQ: Explain why at high frequencies a capacitor acts as an ac short, whereas an inductor acts as an open... Problem 3CQ: In an RLC series circuit, can the voltage measured across the capacitor be greater than the voltage... Problem 4CQ: For what value of the phase angle between the voltage output of an ac source and the current is the... Problem 5CQ: Discuss the differences between average power and instantaneous power. Problem 6CQ: The average ac current delivered to a circuit is zero. Despite this, power is dissipated in the... Problem 7CQ: Can the instantaneous power output of an ac source ever be negative? Can the average power output be... Problem 8CQ: The power rating of a resistor used in ac circuits refers to the maximum average power dissipated in... Problem 9CQ: Why do transmission lines operate at very hig1 voltages while household circuits operate at fairly... Problem 10CQ: How can you distinguish the primary winding from the secondary winding in a step-up transformer? Problem 11CQ: Battery packs in some electronic devices are charged using an adapter connected to a wall socket.... Problem 12CQ: Will a transformer work if the input is a dc voltage? Problem 13CQ: Why are the primary and secondary coils of a transformer wrapped around the same closed loop of... Problem 14P: Write an expression for the output voltage of an ac source that has an amplitude of 12 V and a... Problem 15P: Calculate the reactance of a 5.0F capacitor at (a) 60 Hz, (b) 600 Hz, and (c) 6000 Hz. Problem 16P: What is the capacitance of a capacitor whose reactance is 10 at 60 Hz? Problem 17P: Calculate the reactance of a 5.0-mH inductor at (a) 60 Hz, (b) 600 Hz, and (C) 6000 Hz. Problem 18P: What is the self-inductance of a coil whose reactance is 10 at 60 Hz? Problem 19P: At s1iat frequency is the reactance of a 20F capacitor equal to that of a 10-mH inductor? Problem 20P: At 1000 Hz, the reactance of a 5.0-mH inductor is equal to the reactance of a particular capacitor.... Problem 21P: A 50resistor is connected across the emf v(t)=(160V)sin(120t) . Write an expression for the current... Problem 22P: A 25F capacitor is connected to an emf given by v(t)=(160V)sin(120t) . (a) What is the reactance of... Problem 23P: A 100-mH inductor is connected across the emf of the preceding problem. (a) What is the reactance of... Problem 24P: What is the impedance of a series combination of a 50resistor, a 5.0F capacitor, and a 10F capacitor... Problem 25P: A resistor and capacitor are connected in series across an ac generator. The emf of the generator is... Problem 26P: A resistor and inductor are connected in series across an ac generator. The emf of the generator is... Problem 27P: In an RLC series circuit, the voltage amplitude and frequency of the source are 100 V and 500 Hz,... Problem 28P: An PLC series circuit with R=600 , L = 30 mH. and c=0.050F is driven by an ac source whose frequency... Problem 29P: For the cucu3t shown below, what are (a) the total impedance and (b) the phase angle between the... Problem 30P: The emf of an ac source is given by v(t)=v0sint. where V0=100V and at =200rad/s . Calculate the... Problem 31P: Calculate the rms currents for an ac source is given by v(t)=v0sint , where V0=100V and =200rad/s... Problem 32P: A 40-mH inductor is connected to a 60-Hz AC source whose voltage amplitude is 50 V. If an AC... Problem 33P: For an RLC series circuit, the voltage amplitude and frequency of the source are 100 V and 500 Hz,... Problem 34P: An ac source of voltage amplitude 10 V delivers electric energy at a rate of 0.80 W when its current... Problem 35P: An RLC series circuit has an impedance of 60 and a power factor of 0.50, with the voltage Lagging... Problem 36P: Calculate the resonant angular freqency of an RLC series circuit for which R=20 , L=75mH, and C=4.0F... Problem 37P: The resonant frequency of RLC series circuits is 2.0103Hz , If the self-inductance in the circuit is... Problem 38P: (a) What is the resonant frequency of an RLC series circuit with R=20 , L=2.0mH , and C=4.0F (b)... Problem 39P: For an RLC series circuit, R=100 , L = 150 mH, and C=0.25F . (a) If an ac source of variable... Problem 40P: An ac source of voltage amplitude 100 V and variable frequency f drives an RLC series circuit with... Problem 41P: (a) What is the resonant frequency of a resistor, capacitor, and inductor connected in series if R =... Problem 42P: Suppose a coil has a self-inductance of 20.0 H and a resistance of 200 . What (a) capacitance and... Problem 43P: An ac generator is connected to a device whose internal circuits are not known. We only know current... Problem 44P: A step-up transformer is designed so that the output of its secondary winding is 2000 V(rms) when... Problem 45P: A step-up transformer connected to a 100-V line U used to supply a hydrogen-gas discharge tube with... Problem 46P: An ac source of emf delivers 5.0 mW of power at an rms current of 2.0 mA when it is connected to the... Problem 47P: A transformer is used to down 110 V from a wall socket to 9.0 V for a ro. (a) If the primary winding... Problem 48P: A transformer is used to supply a 12-V model train with power from a 110-V wall plug. The train... Problem 49AP: The emf of an ac source is given by v(t)=V0sint, where V0=100V and =200 . Find an expression that... Problem 50AP: A 700-pF capacitor is connected across an ac source with a voltage amplitude of 160 V and a... Problem 51AP: A 20-mH inductor is connected across an AC source with a variable frequency and a constant-voltage... Problem 52AP: A 30F capacitor is connected across a 60-Hz ac source whose voltage amplitude is 50 V. (a) What is... Problem 53AP: A 7.0-mH induct is connected across a 60-Hz ac source whose voltage amplitude is 50 V. (a) What is... Problem 54AP: What is the impedance of an RLC series circuit at the resonant frequency? Problem 55AP: What is the resistance R in the circuit shown below if the amplitude of the ac through the inductor... Problem 56AP: An ac source of voltage amplitude 100 V and frequency 1.0 kHz drives an PLC series circuit with... Problem 57AP: In an RLC series circuit, R=200,L=1.0H , C=50F,v0=120V , and f = 50 Hz. What is the power output of... Problem 58AP: A power plant generator produces 100 A at 15 kV (rms). A transformer is used to step up the... Problem 59AP: Consider a power plant located 25 km outside a town delivering 50 MW of power to the town. The... Problem 60AP: Neon signs require 12-kV for their operation. A transformer is to be used to change the voltage from... Problem 61CP: The 335-kV ac electricity from a power transmission line is fed into the primary winding of a... Problem 62CP: A 1.5k resistor and 30-mH inductor are connected in series, as below, across a120-V(rms)ac power... Problem 63CP: A 20 resistor, 50F capacitor, and 30-mH inductor are connected in series with an ac source of... Problem 64CP: A 200- resistor, 150- F capacitor, and 23-H inductor are connected in series with an ac source of... Problem 65CP: Find the reactances of the following capacitors and inductors in ac circuits with the given... Problem 66CP: An output impedance of an audio amplifier has an impedance of 500 and has a mismatch with a... Problem 67CP: Show that the SI unit for capacitive reactance is the ohm. Show that the SI unit for inductive... Problem 68CP: A coil with a self-inductance of 16 mH and a resistance of 6.0 is connected to an ac source whose... Problem 69CP: An RLC series circuit consists of a 50 resistor, a 200F capacitor, and a 120-mN inductor whose coil... Problem 70CP: An RLC series circuit consists of a 10 resistor, an 8.0F capacitor, and a 50-mH inductor. A 110-V... Problem 71CP: Shown below are two circuits that act as crude high-pass filters. The input voltage to the circuits... Problem 72CP: The two circuits shown below act as crude low-pass filters. The input voltage to the circuits is... format_list_bulleted
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