A signal s(t) has the spectrum shown below. S(J) 2jx Write the equation for s(t). Can you sketch this signal? 0.5 √ (Hz) You have been asked to assist the designer of a power transmission system. In a symmetric three-phase system, the sum of the instantaneous currents in the three phases is supposed to be zero. The instantaneous currents in each of the three phases are defined as: i(t) Acos(2 fot + 1) i2(t) = A cos(2π fot + 2) i3(t) = A cos(2 fot + 3) The system frequency fo is 60 Hz. The amplitude A varies between 10 and 1000. The designer has chosen 1 = 0. Your task is to determine values for 2 and 3 such that i₁(t) + 2(t) + i3(t) = 0) or to prove that no values of 2 and 3 will guarantee that the sum of the currents is zero. Choice of 2 and 3:

A signal s(t) has the spectrum shown below. S(J) 2jx Write the equation for s(t). Can you sketch this signal? 0.5 √ (Hz) You have been asked to assist the designer of a power transmission system. In a symmetric three-phase system, the sum of the instantaneous currents in the three phases is supposed to be zero. The instantaneous currents in each of the three phases are defined as: i(t) Acos(2 fot + 1) i2(t) = A cos(2π fot + 2) i3(t) = A cos(2 fot + 3) The system frequency fo is 60 Hz. The amplitude A varies between 10 and 1000. The designer has chosen 1 = 0. Your task is to determine values for 2 and 3 such that i₁(t) + 2(t) + i3(t) = 0) or to prove that no values of 2 and 3 will guarantee that the sum of the currents is zero. Choice of 2 and 3:

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

please help me find the correct answer with complete solution for understanding thank you!
Q6. Figure Q6 shows a modulated waveform v(t) in microvolts as a function of time t in nanoseconds. 25 50 75 100 125 150 175 200 225 250 50 40 40 30 30 20 20 10 10 -10 -10 -20 -20 -30 -30 -40 -40 -50 -50 250 25 50 75 100 125 150 175 200 225 time/ns Figure Q6: Modulated waveform (a) Describe the modulation scheme. (b) What are the values of the carrier frequency and the modulation frequency? (c) What is the value of the modulation index? (d) What is the transmission efficiency (ratio of modulated to total power) in this example? (e) Sketch the spectrum of this modulated waveform indicating the relative magnitudes of the various spectral components. (f) The modulating wave in this example is substituted with a square wave of 50% duty cycle and of fundamental frequency 1.0 MHz. Sketch the absolute value of the spec- trum of the modulated waveform indicating the frequencies and relative magnitudes of the sideband components. (g) Demodulation of this type of signal is usually accomplished…
Express the following in its simplist form: sin(2πft)+sin(2πft-π). Hint: Thinkabout what each seperate waveform looks like.
Express the waveform in terms of step functions:
Problem 5 The voltage signals below have identical peak values. Their rms values are also the same. If the first waveform is a sinusoid, what is the pulse duration Tpulse of the second waveform? Provide your answer in terms of T, the period. V ← Tpulse time 5- K time
Draw the following expressions as time domain graphs.
b) Two circuits connected in series which voltage drop across at each circuit can be expressed in time TTM domain as V1 (t) =5 sin (3147) V and V2 (1) =15 sin (314t - 30°) V. Sketch the waveforms of these voltages to illustrate peak values and phase relationships. UTM 5 UTM UTM TM S UTM UTM TM 5 UTM 8 UTM
You have been asked to produce waveforms A and B shown to enable laboratory experiments to be carried out. Unfortunately, you only have dc supplies and three ac sinusoidal voltage supplies available. Describe how these supplies can be utilised to produce an approximation to the waveforms A and B showing formulae and calculations used (assuming 100V and 50Hz for the fundamental waveform).
Provide an expression for the waveform below in terms of ramp and step functions. va(t) A 1 2 -1 -2
1. Graph the following complex numbers and convert in the specified form a. 5-j7 to exponential form b. 5 cjs (-45°) to rectangular form C. -2-j3 to polar form d. 32-45° to exponential form of complex numbers, (10pts each)
In the following circuit: A sinusoidal voltage source Vs(t)=24sin(5t)V is in parallel with R=0.2MQ and C=10µF. Find Ir, Ic, Is and maximum energy stored in C?
I need help with this problem and an explanation of the solution for the image described below. (Introduction to Signals and Systems)