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문제 1a
The emf phasor in FIGURE EX32.1 is shown at t = 2.0 ms. What is the angular frequency ω? Assume this is the first rotation.
문제 1b
The emf phasor in FIGURE EX32.1 is shown at t = 2.0 ms. What is the peak value of the emf?
문제 7a
A 0.30 μF capacitor is connected across an AC generator that produces a peak voltage of 10 V. What is the peak current to and from the capacitor if the emf frequency is 100 Hz?
문제 7b
A 0.30 μF capacitor is connected across an AC generator that produces a peak voltage of 10 V. What is the peak current to and from the capacitor if the emf frequency is 100 kHz?
문제 8a
The peak current to and from a capacitor is 10 mA. What is the peak current if the emf frequency is doubled?
문제 8b
The peak current to and from a capacitor is 10 mA. What is the peak current if the emf peak voltage is doubled (at the original frequency)?
문제 10
A capacitor is connected to a 15 kHz oscillator. The peak current is 65 mA when the rms voltage is 6.0 V. What is the value of the capacitance C?
문제 11a
A 20 nF capacitor is connected across an AC generator that produces a peak voltage of 5.0 V. At what frequency f is the peak current 50 mA?
문제 11b
A 20 nF capacitor is connected across an AC generator that produces a peak voltage of 5.0 V. What is the instantaneous value of the emf at the instant when iC = IC?
문제 12a
A capacitor has a peak current of 330 μA when the peak voltage at 250 kHz is 2.2 V. What is the capacitance?
문제 12b
A capacitor has a peak current of 330 μA when the peak voltage at 250 kHz is 2.2 V. If the peak voltage is held constant, what is the peak current at 500 kHz?
문제 15
A high-pass RC filter with a crossover frequency of 1000 Hz uses a 100 Ω resistor. What is the value of the capacitor?
문제 17a
A low-pass filter consists of a 100 μF capacitor in series with a 159 Ω resistor. The circuit is driven by an AC source with a peak voltage of 5.00 V. What is the crossover frequency fc?
문제 18
A high-pass RC filter is connected to an AC source with a peak voltage of 10.0 V. The peak capacitor voltage is 6.0 V. What is the peak resistor voltage?
문제 19a
What are VR and VC if the emf frequency in FIGURE EX32.19 is 2.5 kHz?
문제 19b
What are VR and VC if the emf frequency in FIGURE EX32.19 is 25 kHz?
문제 22b
The peak current through an inductor is 10 mA. What is the peak current if the emf peak voltage is doubled (at the original frequency)?
문제 24a
FIGURE EX32.24 shows voltage and current graphs for an inductor. What is the emf frequency f?
문제 24b
FIGURE EX32.24 shows voltage and current graphs for an inductor. What is the value of the inductance L?
문제 26
An inductor is connected to a 15 kHz oscillator. The peak current is 65 mA when the rms voltage is 6.0 V. What is the value of the inductance L?
문제 27a
A series RLC circuit has a 200 kHz resonance frequency. What is the resonance frequency if the resistor value is doubled?
문제 27b
A series RLC circuit has a 200 kHz resonance frequency. What is the resonance frequency if the capacitor value is doubled?
문제 28
A series RLC circuit has a 200 kHz resonance frequency. What is the resonance frequency if the capacitor value is doubled and, at the same time, the inductor value is halved?
문제 32a
For the circuit of FIGURE EX32.32, What is the resonance frequency, in both rad/s and Hz?
문제 32b
For the circuit of FIGURE EX32.32, Find VR and VL at resonance.
문제 33a
For the circuit of FIGURE EX32.33, What is the resonance frequency, in both rad/s and Hz?
문제 34
The heating element of a toaster dissipates 1500 W when connected to a 120 V/60 Hz power line. What is its resistance?
문제 36
A resistor dissipates 2.0 W when the rms voltage of the emf is 10.0 V. At what rms voltage will the resistor dissipate 10.0 W?
문제 38
The motor of an electric drill draws a 3.5 A rms current at the power-line voltage of 120 V rms. What is the motor's power if the current lags the voltage by 20°?
문제 39
A series RLC circuit with a 100 Ω resistor dissipates 80 W when attached to a 120 V/60 Hz power line. What is the power factor?
