11:35RLC Circuits (4 of 19) Capacitive Reactance; Phase Shift, Phasor Diagrams, Frequency, An ExplanationStep by Step Science406views
Multiple ChoiceAn AC source operates at a maximum voltage of 120 V and a frequency of 60 Hz. If it is connected to a 175 µF capacitor, what is the maximum charge stored on the capacitor?535views2rank
Multiple ChoiceA 300 µF capacitor is connected to an AC source operating at an RMS voltage of 120 V. If the maximum current in the circuit is 1.5 A, what is the oscillation frequency of the AC source?511views1rank
Multiple ChoiceThe peak current to and from a capacitor is i when the emf source has a peak voltage V and frequency f. What is the peak current to and from the capacitor if the frequency and peak voltage are doubled to 2f and 2V, respectively?373views
Multiple ChoiceAn AC circuit consists of a capacitor and an emf source with frequency 0.25Hz. If the source is turned on at t=0s, and the first time the voltage across the capacitor reaches a maximum value is at t=1.4s, when is the first time the current in the capacitor is at a maximum?348views
Multiple ChoiceAn AC circuit consists of a 20μF capacitor and an emf source with a peak voltage of 40 V. What is the frequency of the source if the peak current is 430mA?203views
Multiple ChoiceA low-pass RC filter has a 10kΩ resistor in series with a 450μF Capacitor. What is the crossover angular frequency?226views
Textbook QuestionA 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 (a) 100 Hz?153views
Textbook QuestionThe small transformers that power many consumer products produce a 12.0 V rms, 60 Hz emf. Design a circuit using resistors and capacitors that uses the transformer voltage as an input and produces a 6.0 V rms output that leads the input voltage by 45°.63views
Textbook QuestionA capacitor is connected across an ac source that has voltage amplitude 60.0 V and frequency 80.0 Hz. (a) What is the phase angle Φ for the source voltage relative to the current? Does the source voltage lag or lead the current?274views
Textbook QuestionA capacitance C and an inductance L are operated at the same angular frequency. (a) At what angular frequency will they have the same reactance? (b) If L = 5 00 mH and C = 3.50 μF, what is the numerical value of the angular frequency in part (a), and what is the reactance of each element?350views
Textbook QuestionA capacitor is connected across an ac source that has voltage amplitude 60.0 V and frequency 80.0 Hz. (b) What is the capacitance C of the capacitor if the current amplitude is 5.30 A?729views
Textbook Question(a) Compute the reactance of a 0.450-H inductor at frequencies of 60.0 Hz and 600 Hz. (b) Compute the reactance of a 2.50-μF capacitor at the same frequencies. (c) At what frequency is the reactance of a 0.450-H inductor equal to that of a 2.50-μFcapacitor?234views