In the series-parallel circuit shown, the RMS value of the voltage across the parallel part of the circuit is 50V. Find the corresponding value of the source voltage V. 8.5230° 0 200 j600 ll
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- The rms value of v(t)=Vmaxcos(t+) is given by a. Vmax b. Vmax/2 c. 2Vmax d. 2VmaxIf the rms phasor of a voltage is given by V=12060 volts, then the corresponding v(t) is given by (a) 1202cos(t+60) (b) 120cos(t+60) (c) 1202sin(t+60)The instantaneous power absorbed by the load in a single-phase ac circuit, for a general R LC load under sinusoidal-steady-state excitation. is (a) Nonzero constant (b) Zero (c) Containing double-frequency components
- Let a 100V sinusoidal source be connected to a series combination of a 3 resistor, an 8 inductor, and a 4 capacitor. (a) Draw the circuit diagram. (b) Compute the series impedance. (C) Determine the current I delivered by the source. Is the current lagging or leading the source voltage? What is the power factor of this circuit?The power factor for an inductive circuit (R-L load), in which the current lags the voltage, is said to be (a) Lagging (b) Leading (c) ZeroThe instantaneous voltage across a circuit element is v(t)=400sin(t+30)volts, and the instantaneous current entering the positive terminal of the circuit element is i(t)=100cos(t+10)A. For both the current and voltage, determine (a) the maximum value, (b) the rms value, and (C) the phasor expression, using cos(t) as the reference.
- a-Find the RMS values of the load voltage and the load current b-Calculate and draw the voltage across the load inductance c-Calculate and draw the source current and find its average valueA 60 Hz sinusoidal voltage v = 141sinwt is applied to a series RL circuit. The values of the resistance and the inductance are 3 ohms and 0.016 henry respectively. a) Compute the rms value of the current and its phase angle with respect to the voltage. b) write the expression of the instantaneous current.A 60 Hz sinusoidal voltage v = 141sinwt is applied to a series RL circuit. The values of the resistance and the inductance are 3 ohms and 0.016 henry respectively. a) Compute the rms value of the current and its phase angle with respect to the voltage.b) write the expression of the instantaneous current.
- In the circuit below, find the followa) Find the rms current passing through and the average power absorbed by resistor 1Ω due to the10 VDC source. b) Find the rms current passing through and the average power absorbed by the1Ω resistor due to the 5A AC source. c) What is the total average power transferred?Using the data in Table 1.1 convert the current I and source voltage Vs to RMS values. Then draw a plot of the power phasor diagrams at a frequency of 1000 Hz and another at a frequency of 8000 Hz. Determine the real power, the reactive power, and the apparent power in the RC circuit at those frequencies.1. a) Find the rms magnitude and the phase angle of ICA in the circuit shown. 2. b) What percent of the average power delivered by the three-phase source is dissipated in the three-phase load?