An RLC series circuit has R = 100 ohms, C = 25 µF, and L= 0.16 H. For what angular frequency of an ac voltage is the current flow maximum?
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- In a purely inductive AC circuit as shown in the figure, ΔVmax = 100 V. The maximum current is 7.00 A at 80.0 Hz. Calculate the inductance L. At what angular frequency ?is the maximum current 50A?The peak voltage of an AC source is 102 V. What is the rms voltage?An electrical engineer is working with a parallel AC circuit. The circuit draws 10 ohms on a resistive branch, and the angle of the total impedance is 15°. What is the total impedance? O 7.6 ohms O 9.66 ohms O 10.35 ohms O 13.16 ohms
- An AC voltage source and a resistor are connected in series to make up a simple AC circuit. If the source voltage is given by V = Vo sin(2aft) and the source frequency is 14.0 Hz, at what time t will the current flowing circuit be 54.0% of the peak current? msA 0.30 μF capacitor is connected across an AC generator that produces a peak voltage of 10.0 V. What is the peak current through the capacitor if the emf frequency is (a) 100 Hz? (b) 100 kHz?In the figure below, a series RLC circuit of an inductance of 0.05 H, a capacitance of 1000 µF and a resistance of 10 ohms is tuned to resonance by connecting it across a variable frequency AC supply. The current and XC and XL vs. frequency of this circuit are plotted, see below. 10 Voits 0.0S H 0.0424A Cuurent vs. Frequency 1.2 1 0.8 0.4 0.2 100 12 Frequency Current vs. XL and Xc 180 160 . 140 120 OXL xC 100 80 . 60 40 20 ..... O 10 20 30 40 s0 0 70 80 90 100 110 Frequency (Hz) Answer these questions: 1- Determine the resonant frequency of this circuit and the amplitude of the current at resonance. 2- Which region does the circuit reactance is capacitive and which is inductive?
- An ac series circuit contains a voltage source with angular frequency of 200 rad/s and volatage amplitude V, a resistor with R=400 ohms and a capacitor with C= 1.00 x10^-5 F. If the voltage amplitude across the resistor is 40 V, what is the amplitude of the voltage across the capacitor?At resonance, the rms current in an RLC circuit is 5 8 A. If the rms voltage of the generator is 120 V what is the resistance, R?An AC circuit has an rms current of 1.9 A, and an rms EMF of 7.1 V. What is the amount of average power (in watts) in this circuit if the power factor is 0.18?
- A resistor with resistance R is connected to an AC source. If the AC source provides a voltage VR(t) = V0cos(omegat), what is the current IR(t) through the resistor as a function of time?A 20 mH inductor is connected across an AC generator that produces a peak voltage of 10.0 V. What is the peak current through the inductor if the emf frequency is (a) 100 Hz? (b) 100 kHz?