Plot the phasor in the complex plane polar0 angleep

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Unformatted text preview: of phasor. angle(Ep)*180/pi %Get phase angle of phasor in degrees. abs(Ep) %Get magnitude of phasor. %You could also do symbolic manipulation... syms w t real( Ep*exp(j*w*t) ) %...but you wouldn’t like the result (try it). %Plot the phasor in the complex plane. polar([0 angle(Ep)], [0 abs(Ep)]) 5 2.3 Problem 3 GIVEN ˆ H = x sin(107 πt − 0.2z ) + y cos 107 πt − 0.2z − 5 π ˆ 2 2.3.1 Part a FIND Frequency. WORK π First, for clarity, cos 107 πt − 0.2z − 5 π = cos(107 πt−0.2z ) cos 52 +sin(107 πt− 2 π 0.2) sin 52 , and since cos(5π/2) = cos(π/2) = 0, while sin(5π/2) = sin(π/2) = 7 1, cos 10 πt − 0.2z − 5 π = sin (107 πt − 0.2z ) . 2 The phase front of the wave is given by the argument of the sinusoidal functions: 107 πt − 0.02z . This is a forward-propogating wave (increase the time a little bit, and you have to move forward in the z -direction to catch up...
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