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Find the sinusoidal expression for the current
Fig. 14.85
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Laboratory Manual for Introductory Circuit Analysis
- Determine: re, Zi, Zo, Av (use appropriate approximation)arrow_forward32. A time domain circuit with v(t) = 100 sin(377t) in 5mS, what is the effective current if the load is 10 ohms? 6.14A 8.67A 7.07A 10A 36. In a series RL circuit, if cos θ = 0.707, the voltage ________ the current by _______. leads, 90 degrees lags, 90 degrees leads, 45 degrees lags, 45 degrees 37. What will happen when an ideal capacitor was installed in parallel with the load? system power factor decreases system power factor increases system will be under voltage system power loss increases 39. Phase angle in a balance circuit has a difference of __________ degrees. 60 90 30 120arrow_forwardFor the circuit shown below, if E =30 sin(377t + 20°) what is the sinusoidal expression for the current?: A)i =7.07 sin(377t + 20°) B)i =10 sin(377t - 20°) C)i =10 sin(377t + 20°)arrow_forward
- Use CTFT table and properties to find the numerical value of x(t) at t=0.75 if x(t)= 3 sinc (2t) * sinc (4t) : Select one: a. 0.75 sinc (1.5) b. None of the given options c. 3 sinc (1.5) + 3 sinc (3) d. 3 sinc (1.5) sinc (3) e. 3/8 rect (1.5) rect (3)arrow_forward45. The average power absorbed by an inductor is zero. Neither True False Either 44. The voltage across and inductor leads the current through it by 90 deg. Neither True Either False 43. At what frequency will the output voltage of a series RL circuit with 1 ohm resistor and 0.25 H inductor be equal to the input voltage? infinity 0 rad/s 1 rad/s 4 rad/s 42. The impedance of a capacitor increases with increasing frequency. False Neither True Depends 41. The imaginary part of impedance is called: Conductance Resistance Admittance Reactancearrow_forwardALL ANSWER IN MAGNITUDE FORM PLS USE 4 DECIMAL PLACE *A coil of resistance 1 ohm and inductance 100 mH is connected in series with a capacitance of 0.12µF across a 200 V, variable frequency supply. Calculate the resonant frequency *A 1- microfarad capacitor is connected in series with a 50 ohm resistor. What is the capacitor reactance values on mOHMS? Assume ω =377 *The total capacitance of two 40-mF series-connected capacitors in parallel with a 1 mF capacitor is _____? *A pure inductance is connected to a 150 V, 1 Hz supply, and the apparent power of the circuit is 300 VA. Find the value of the inductance *What is the RMS current of a trapezoidal wave with 1 A max? *A circuit consisting of a resistor in series with a capacitor takes 100 watts at a power factor of 0.1 from a 100 V, 60 Hz supply. Find the current flowingarrow_forward
- Evaluate the following. express answers in polar formarrow_forward6.22 Let v1 ¼ 8 sin 100t and v2 ¼ 6 sin 99t. Show that v ¼ v1 þ v2 is periodic. Find the period, and the maximum, average, and effective values of v. Ans: T ¼ 2; Vmax ¼ 14; Vavg ¼ 0; Veff ¼ 5 ffiffiffi 2 p 6.23 Find period, frequency, phase angle in degrees, and maximum, minimum, average, and effective values of vðtÞ ¼ 2 þ 6 cosð10t þ =6Þ. Ans: T ¼ 0:2 s; f ¼ 5 Hz; phase ¼ 308; Vmax ¼ 8; Vmin ¼ 4; Vavg ¼ 2; Veff ¼ ffiffiffiffiffi 22arrow_forwardThe voltage wave propagating on a transmission line is given in real space-time form as v(z, t) = 10cos(4π*108 t +1.6 π z) + 6cos(4 π *108 t - 1.6 π *z) .the voltage expression in phasor form.arrow_forward
- Using the phase shift theta= 72° from the Experiment, determine the value of the capacitance, C, of the capacitor shown. Vr(t) = 0.93612 cos( 4000 t - 72° ) Varrow_forwardAn AC Voltage Generator provides 100 V at angular frequency of 500 rad/s to a series RLC, R = 3 ohms, C = 50 uF, L = 10 to 80 mH. Peak Voltage across the capacitor should not exceed 1200 V. A. Determine the voltage across the Inductor, VL(t). Hint: VL(t) leads VR(t) by 90 degrees. What is the average voltage across the inductor, VL? B. Determine the voltage across the Capacitor, VC(t). Hint: VC(t) lags VR(t) by 90 degrees. What is the average voltage across the capacitor, VC? C. Show that V ≠ VR + VL + VCarrow_forwardProblem 1.3 (Sinusoids and Exponentials) All signals are defined for – ∞ < t < ∞.(a) Sketch the sinusoid xa(t) = 2 cos(10πt + π/6). What is its fundamental period? Repeat part (a) but for the sinusoid xb(t) = 5 sin(19πt − π/3).arrow_forward
- Delmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage Learning