The voltage of an ac source is given by V(t) Vo sin ut, where V-80 V and w=240 rad/s. Calculate the average power output of the source if it is connected across (a) a 25-pf capacitor, (b) a 5-mH inductor, and (c) a 35-0 resistor. (d) What is the rms voltage of the ac source? Hint a. The average power output with the capacitor is b. The average power output with the inductor is c. The average power output with the resistor is d. The rms voltage of the ac source is W. W. W. V. Additional Hints

The voltage of an ac source is given by V(t) Vo sin ut, where V-80 V and w=240 rad/s. Calculate the average power output of the source if it is connected across (a) a 25-pf capacitor, (b) a 5-mH inductor, and (c) a 35-0 resistor. (d) What is the rms voltage of the ac source? Hint a. The average power output with the capacitor is b. The average power output with the inductor is c. The average power output with the resistor is d. The rms voltage of the ac source is W. W. W. V. Additional Hints

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.7P: Let a 100V sinusoidal source be connected to a series combination of a 3 resistor, an 8 inductor,...

See similar textbooks

Similar questions

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 average value of a double-frequency sinusoid, sin2(t+), is given by (a) 1 (b) (c) Zero
If 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)
An industrial load consisting of a bank of induction motors consumes 50 kW at a power factor of 0.8 lagging from a 220-V,60-Hz, single-phase source. By placing a bank of capacitors in parallel with the load, the resultant power factor is to be raised to 0.95 lagging. Find the net capacitance of the capacitor bank in F that is required.
The rms current in a 33.0-0 resistor connected to an AC source is 2.80 A. (a) What is the rms voltage across this resistor? V (b) What is the peak voltage of the AC source? V (c) What is the average power dissipated by the resistor? W (d) What is the maximum current across this resistor? A
(b) An engineer is required to analyse a sinusoidal waveform for the voltage and current using oscilloscope. The voltage waveform produced Root Mean Square (RMS) value at 75 V with positive-going zero crossing at 30°. While the RMS value of current is 66.71 A with negative-going zero crossing at 0.349 rad. Assume the frequeney of both waveforms is 50 Hz. (i) Sketch the voltage and current waveform in the same axis by showing the important point. (ii) Determine instantaneous voltage when t = 8ms . (iii) Determine phase relationship between voltage and current waveform.
Two ac generators supply the same voltage. However, the first generator has a frequency of 1.2 kHz, and the second has a frequency of 5.7 kHz. When an inductor is connected across the terminals of the first generator, the current delivered is 0.15 A. How much current is delivered when this inductor is connected across the terminals of the second generator? Note: The ac current and voltage are rms values and power is an average value unless indicated otherwise. Number i Units 1₂ L 0000 V sin 2π f₁t Circuit 1 12 L 0000 Vo sin 2x f₂t Circuit 2
When a load is connected to a power line with a frequency of 230V (rms) 50 Hz, it draws 4500 W at a power factor of 0.80. Find the required capacitance value to increase the power factor to 0.85.
A harmonic analysis of the current drawn by a CFL yields the following data. Find the rms value of current and the wwwwwwww total harmonic distortion (THD). Harmonics rms Current (A) 1357a 0.15 0.12 0.08 0.03 0.02
The instantaneous current of AC source is 1, inst Select one: Oa. 250 A b. 176.6 A OC. 300 A Od. 150 A 250 sin(300t). The value of rms current (ms) is CE
(b) An engineer is required to analyse a sinusoidal waveform for the voltage and current using oscilloscope. The voltage waveform produced Root Mean Square (RMS) value at 75 V with positive-going zero crossing at 30°. While the RMS value of current is 66.71 A with negative-going zero crossing at 0.349 rad. Assume the frequency of both waveforms is 50 Hz. (i) Sketch the voltage and current waveform in the same axis by showing the important point. (ii) Determine instantaneous voltage when t = 8ms - (iii) Determine phase relationship between voltage and current waveform. (c) From the measurement process, the circuit generated two different outputs, V,(t) and V,(t) with the same peak voltage. The V,(t) lagging V,(t) by 100°. If V,(t) =150sin(1000t – 40°)V , determine the RMS value and phase angle of.
An engineer is required to analyse a sinusoidal waveform for the voltage and current using oscilloscope. The voltage waveform produced Root Mean Square (RMS) value at 75 V with positive phase of 30°. While the RMS value of current is 66.71 A with negative phase of 0.349 rad. Assume the frequency of both waveforms is 50 Hz. (i) Sketch the voltage and current waveform in the same axis by showing the important point. (ii) Determine instantaneous voltage when t = 8ms . (iii) Find the time, t in the first cycle when current is – 80A (iv) Determine phase relationship between voltage and current waveform.