Electrical Engineering: Principles & Applications (7th Edition)
7th Edition
ISBN: 9780134484143
Author: Allan R. Hambley
Publisher: PEARSON
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Chapter 5, Problem 5.7P
A current
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Q2. For the circuit shown below, sketch the current waveforms is and io and determine the
Average and RMS for both currents.
a = 50°
T1
50 2
ot
Vs = 300 sin 100rt
T2
ot
A 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.
A current i(1) = 30 sin 100rt amperes is applied across an electric circuit. Determine
RMS values current to 4 significant figures over the range of t-0 to t=10 milliseconds.
Use Simpson's rule.
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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- 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_forwardCalculate the root-mean-square (rms) value of the current whose waveform is given below. The parameters are as follows: Im = 3 A, T = 10 s. State your result in Amperes (A). Im -T 27arrow_forwardThe sinusoidal voltage source in the circuit seen in (Figure 1) is operating at a frequency of 54 krad/skrad/s. The coefficient of coupling is adjusted until the peak amplitude of i1 is maximum. What is the peak amplitude of i1 if vg=429cos(5.4×104t)V?arrow_forward
- 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 circuitarrow_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_forwardGiven the circuit shown, answer the following questions 1 40 I U8 VS-24/60° V (+ one of the following statements is correct: Choose... Choose... 12 in Ampere equals to: 2.65-j0.54 the equivalent impedance in Ohm of the circuit is 7+j1.88 12 leads Vs by 60° 12 lags Vs by 71.58° -0.47+j1.75 12 leads Vs by 71.58° 12 leads Vs by 11.58° 3.26+j15.93 12 lags Vs by 11.58° 2.18+j1.21 8.24+j4.94 V2 in Volts equals to: m13-4-2021 Jump to...arrow_forward
- Q2) 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_forwardIf there is reactive power associated with a circuit element we can say a) That said element is purely resistive. b) That said element has a unitary power factor c) That said element has associated electric or magnetic fields d) None of the abovearrow_forwarda) Write down the expression of instantaneous voltage for an AC voltage having a Peak value of 220 Volts and a frequency of 50 Hz provided at time t=0, the instantaneous voltage is 220 Volts. What is the instantaneous voltage of the source at time “t = 5 seconds” What is its RMS voltage? b) Two 200Ω resistances are connected in series with one 0.5 H Inductance and two 100μF Capacitance with the power supply of part (a). (i)Draw the circuit diagram of the above network (ii)What is the total impedance of the circuit (iii)What is the max current that flows through the Inductance? (iv)What is the max current that flows through each of the Capacitance? (v)What is the power dissipated in the circuit (vi)What is the power factor of the circuit (vii)What is the resonance frequency of the circuit? (viii) What is the maximum power dissipated by the circuit when it is in resonancearrow_forward
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