An alternating current in a 4G signal transmitter is expressed as I= 5 sin(120nt + 0.52), I in mA, t in s. Find: A. The amplitude, period, frequency and phase shift (phase at time = 0, in degrees) of I B. The value of the current I at: įt=0 ii t=1/60 111. t= 1/30 1V. t= 1/15 What do you notice about your results? If the phase of the current I is 1 radians, what is the tir C. at this instance. Use MATLAB to plot I for1 complete period ONLY. On the graph, show the point at which the phase of the current I is 1 radian. Showing your calculations, find the time at which the current is maximum and positive [hint: sin D. E. F. function is maximum when the angle 1s t 2 radians, or you can derive and equate to zero!]. G. From your plot, find the time, t. when current, I is maximum. H. Find the time and the phase displacement between I= 5 sin(120rt + 0.52) and I = 5 sin(120nt), show your calculations. I. Plot the two signals in (h) on the same graph, show which one of them lags the other.

An alternating current in a 4G signal transmitter is expressed as I= 5 sin(120nt + 0.52), I in mA, t in s. Find: A. The amplitude, period, frequency and phase shift (phase at time = 0, in degrees) of I B. The value of the current I at: įt=0 ii t=1/60 111. t= 1/30 1V. t= 1/15 What do you notice about your results? If the phase of the current I is 1 radians, what is the tir C. at this instance. Use MATLAB to plot I for1 complete period ONLY. On the graph, show the point at which the phase of the current I is 1 radian. Showing your calculations, find the time at which the current is maximum and positive [hint: sin D. E. F. function is maximum when the angle 1s t 2 radians, or you can derive and equate to zero!]. G. From your plot, find the time, t. when current, I is maximum. H. Find the time and the phase displacement between I= 5 sin(120rt + 0.52) and I = 5 sin(120nt), show your calculations. I. Plot the two signals in (h) on the same graph, show which one of them lags the other.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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