Electrical Engineering: Principles & Applications (7th Edition)
7th Edition
ISBN: 9780134484143
Author: Allan R. Hambley
Publisher: PEARSON
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Chapter 5, Problem 5.8P
We have a voltage
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If an electrical circuit draws 100W + J100VAR from a sinusoidal source, then what would the circuit be? Explain why.
a) a pure resistor circuit
b) a series or parallel R-L circuit
c) a series or parallel R-C circuit
d) a series L-C circuit
1
Calculate average and RMS value of the voltage waveform given in Figure.
4V
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4V
Resistive Voltage
The supply across the terminals of this circuit is 170 V, 50 Hz.
An ammeter is connected to the supply.
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The inductance L is 0mH.
The ammeter reading the supply current shows 4 A.
Find the magnitude of the voltage across the resistance:
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• Use Impedances and Complex Numbers.
• Use Ohm's Law.
Meters read Magnitude.
Chapter 5 Solutions
Electrical Engineering: Principles & Applications (7th Edition)
Ch. 5 - Consider the plot of the sinusoidal voltage...Ch. 5 - Repeat Problem P5.3 for v(t) = 50 sin (500t+120) .Ch. 5 - A sinusoidal voltage v(t) has an rms value of 20...Ch. 5 - A current i(t)=10cos(2000t) flows through a 100...Ch. 5 - We have a voltage v(t)=1000sin(500t) across a 500...Ch. 5 - Calculate the rms value of the half-wave rectified...Ch. 5 - We have v1(t)=10cos(t+30) . The current i1(t)has...Ch. 5 - Solve for the mesh currents shown in Figure P5.55.Ch. 5 - Two loads. A and B, are connected in parallel...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Consider the electrical circuit shown in the image. There are 4 currents present. The current I enters a note and then branches into three seperate currents, I1, I2, and I3. A) rank the 4 currents according to their magnitude, greatest first. Explain. B)Considering Delta V1, Delta V2, and Delta V3, now rank them according to magnitude. Explain.arrow_forwardQ2) Non – sinusoidal voltage applied on 102 resistance with consumed power 521.25 watts and the current is i(t) =10sinwt+I3 sin3wt+0.5 sin5wt Amp. Find the Iz and the voltage effective value.arrow_forwardFind the RMS value of V)-100 sin(377t+76) Varrow_forward
- The equation of two currents in parallel connected in electric devices are i = 12 sin ( 377t + T/4 ) Ampere and i, = 5 sin ( 377t - T/4 ) Ampere. a. What is the ms value of the resultant current? b. What is the value of A and B? c. What is the form factor?arrow_forwardIn the figure: R1 = 1439.170, R2 = R1 and R3 =2R2, then determine the value of the voltage source E. a 8 mA 10 mA 2 mA RT R1 R2 R3 O 25.33 11.51 O 17.27 15.43 13.82 +arrow_forwardA series circuit consisting of 17ohm resistance and 20mH inductane is connected across a 220V(RMS) 60Hz supply. Determine the magnitude of the total current in the circuit.arrow_forward
- 5) Find the reactance the inductance and impedance of the circuit. Calculate the current of this circuit and the sketch waveform of current and voltage. V1 10 V 60 Hz R1 m 100kQ 12 Vrms 1000 Hz 0° 6) Find the reactance the inductance and impedance of the circuit. Calculate the currents of this circuit R www 502 L L1 106mH eee 10 mHarrow_forwardA current of i = 5 + 10 sin 377t + 377t Ampere flows through a series circuit containing resistance of 5 ohms and an inductance of 13.26mH. Determine the expression of the total voltage. a. e=25+70.7 sin (377t + 45°) Volts O b. e 25+ 70.7 sin (377t - 45°) Volts = O c. e = 25 + 70.7 sin (377t – 30°) Volts O d. e 25+ 70.7 sin (377t +30°) Voltsarrow_forwardA current i(t)=10 cos(2000πt) flows through a 100-Ω resistance. Sketch i(t) and p(t) to scale versus time. Find the average power delivered to the resistance.arrow_forward
- 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 AV = AVmax sin(27ft) and the source frequency is 19.0 Hz, at what time t will the current flowing in this circuit be 61.0% of the peak current? 5.922 X Note that the voltage in this AC circuit is a sine function. Did you use the correct units for the argument of the sine function? msarrow_forwardAn alternating current, i = 1.414 Sin (2 π x 50 x t) A, is passed through a series circuit consisting of aresistance of 100-ohm and an inductance of 0.31831 henry. Find the expressions for the instantaneous values of the voltages across (a.) the resistance(b.) the inductance and(c.) the combination.arrow_forwardAlternating Current In Europe, the voltage of the alternating current coming through an electrical outlet can be modeled by the function V = -30 sin (100pt), where t is mea-sured in seconds and V in volts. What is the frequency of the voltage?arrow_forward
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