ENGINEERING CIRCUIT...(LL)>CUSTOM PKG.<
9th Edition
ISBN: 9781260540666
Author: Hayt
Publisher: MCG CUSTOM
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Textbook Question
Chapter 11, Problem 11E
The phasor current
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The equations of the currents in two parallel-
connected electric devices are
İz=11.3(sin377+90°) and iz=8.5sin(377t -90°).
What is the rms value of the resultant current?
Calculate the frequency a 15 V sinusoidal source should be set to so that a 800 mH inductor connected across it has
an inductive reactance of 1350 Q.
Answer:
HzO kHzO MHz
The peak amplitude of the sinusoidal voltage source in the circuit shown in (Figure 1) is 150√2 V
and its period is 200 μs. The load resistor can be varied from 0 to 20 2 and the load inductor
can be varied from 1 to 8 mH
Part A
Calculate the average power delivered to the load when R = 10 and Lo = 6 mH
Express your answer to three significant figures and include the appropriate units.
P = 9.00 W
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Determine the settings of R, and Lo that will result in the most average power being transferred to Ro
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Express your answer to three significant figures and include the appropriate units.
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Part C
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Chapter 11 Solutions
ENGINEERING CIRCUIT...(LL)>CUSTOM PKG.<
Ch. 11.1 - A current source of 12 cos 2000t A, a 200 ....Ch. 11.2 - Given the phasor voltage across an impedance ,...Ch. 11.2 - Prob. 3PCh. 11.2 - Prob. 4PCh. 11.2 - A voltage source vs is connected across a 4...Ch. 11.3 - If the 30 mH inductor of Example 11.7 is replaced...Ch. 11.4 - Calculate the effective value of each of the...Ch. 11.5 - For the circuit of Fig. 11.16, determine the power...Ch. 11.6 - Prob. 10PCh. 11 - Prob. 1E
Ch. 11 - Determine the power absorbed at t = 1.5 ms by each...Ch. 11 - Calculate the power absorbed at t = 0, t = 0+, and...Ch. 11 - Three elements are connected in parallel: a 1 k...Ch. 11 - Let is = 4u(t) A in the circuit of Fig. 11.28. (a)...Ch. 11 - Prob. 6ECh. 11 - Assuming no transients are present, calculate the...Ch. 11 - Prob. 8ECh. 11 - Prob. 9ECh. 11 - Prob. 10ECh. 11 - The phasor current I=915mA (corresponding to a...Ch. 11 - A phasor voltage V=10045V (the sinusoid operates...Ch. 11 - Prob. 13ECh. 11 - Prob. 14ECh. 11 - Find the average power for each element in the...Ch. 11 - (a) Calculate the average power absorbed by each...Ch. 11 - Prob. 17ECh. 11 - Prob. 18ECh. 11 - Prob. 19ECh. 11 - The circuit in Fig. 11.36 has a series resistance...Ch. 11 - Prob. 21ECh. 11 - Prob. 22ECh. 11 - Prob. 23ECh. 11 - Prob. 24ECh. 11 - Prob. 25ECh. 11 - Prob. 26ECh. 11 - Prob. 27ECh. 11 - Prob. 28ECh. 11 - Prob. 29ECh. 11 - Prob. 30ECh. 11 - Prob. 31ECh. 11 - Prob. 32ECh. 11 - Prob. 33ECh. 11 - (a) Calculate both the average and rms values of...Ch. 11 - Prob. 35ECh. 11 - FIGURE 11.43 Calculate the power factor of the...Ch. 11 - Prob. 37ECh. 11 - Prob. 38ECh. 11 - Prob. 40ECh. 11 - Prob. 41ECh. 11 - Prob. 42ECh. 11 - Prob. 43ECh. 11 - Compute the complex power S (in polar form) drawn...Ch. 11 - Calculate the apparent power, power factor, and...Ch. 11 - Prob. 46ECh. 11 - Prob. 48ECh. 11 - Prob. 49ECh. 11 - Prob. 50ECh. 11 - Prob. 51ECh. 11 - Prob. 52ECh. 11 - FIGURE 11.49 Instead of including a capacitor as...Ch. 11 - Prob. 54ECh. 11 - A load is drawing 10 A rms when connected to a...Ch. 11 - For the circuit of Fig. 11.50, assume the source...Ch. 11 - Prob. 57ECh. 11 - A source 45 sin 32t V is connected in series with...Ch. 11 - Prob. 60ECh. 11 - FIGURE 11.51 The circuit in Fig. 11.51 uses a Pi...Ch. 11 - Prob. 62ECh. 11 - Prob. 63ECh. 11 - You would like to maximize power transfer to a 50 ...
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- 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?arrow_forwardConvert the following instantaneous currents to phasors, using cos(t) as the reference. Give your answers in both rectangular and polar form. (a) i(t)=5002cos(t30) (b) i(t)=4sin(t+30) (c) i(t)=5cos(t15)+42sin(t+30)arrow_forwarda sinusoidal alternating voltage has a r.m.s value of 200v and frequency of 50hz. it crosses the zero axis in a positive direction when t=0. determine (i) the time when voltage after passing through its maximum positive value reaches the value of 141.4 v.arrow_forward
- Segments of two sinusoids are shown in the plot below. Determine the phase difference between the two waveforms. Amplitude 0 2 -2 -4 0 180° 90 ° Oo° 0.5 Time (seconds) 1 1arrow_forwardP.3: Find the rms value for the following sinusoidal waveforms a. v= 120 sin(377t + 60°) b. i=6x 10³ sin(2# 1000r) c. u=8 x 10-6 sin(2# 5000 + 30°) P.4: Find the rms value for the following sinusoidal waveforms a. v= 20 sin 754r b. v= 7.07 sin 377r c. i=0.006 sin(400r + 20°) d. i 16 x 10³ sin(377r - 10%) P.5: Write the sinusoidal expressions for voltages and currents having the following rms values at a frequency of 60 Hz with zero phase shifts: a. 4.8 V b. 50 mA c. 2 kVarrow_forwardWhen measured by an analog meter, a sinusoidal voltage shows a reading of 100 Vrms. What is the amplitude of the voltage source? A 140 V B) 141 V c) 142 V D 143 Varrow_forward
- a sinusodial source supplies 30 KVAR reactive power to load Z= 250at an angle-75° determine (a) the power factor b) the apparant power delivered to the load and c) the RMS voltage.arrow_forwardThe average value of a sinusoidal current is 100 A. Its r.m.s. value is.......... (1) 63.7 A (iii) 141.4 A (ii) 70.7 A (iv) 111 Aarrow_forwardIn the figure, R = 22.50, C=4.31 μF, and L = 35.1 mH. The generator provides an emf with rms voltage 92.9 V and frequency 764 Hz. (a) What is the rms current? What is the rms voltage across (b) R, (c) C, (d) L, (e) C and L together, and (f) R, C, and L together? At what average rate is energy dissipated by (g) R, (h) C, and (i) L? www 000 Rarrow_forward
- Find thr RMS value..arrow_forwardClear my choice A capacitor is connected in parallel with a load of S= 6000 VA, and pf3D0.8 lag. The load is operating at 180 V and a frequency of 60 Hz. Calculate the capacitance value that will correct the power factor to pf=1. Select one: O a. 0.295 mf O b. None of them c. 0.354 mf O d. 6000 mf An 8 kVA motor operates at a 0.75 power factor, the real power is then: Select one: О 60 KW O 600 W O None of the Answers O 6000 W What term describes the maximum expected error associated with a measurement or a seńsor? 113 ) A ENG 12-Aarrow_forwardSolve the AC circuitarrow_forward
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