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diff --git a/1574/CH9/EX9.4/Aerials_Ex_9_4.sce b/1574/CH9/EX9.4/Aerials_Ex_9_4.sce
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+clc

+//Chapter9

+//Example9.4, page no 398

+//Given

+dl=2// length of wire 

+I=6//current in the wire

+f=1e6// operating freq

+r=30e3//distance at which field is to be calculated

+theta=90//right angles to the wire axis

+lambda=300// wavelength

+w=2*%pi*f//angular freq

+c=3e8,t=f^-1

+Phi=w*(t-(r/c))//Phase shift

+Erad=25.13e-5*cos(Phi)//Radiation electric field intensity

+H=Erad/(120*%pi)//Radiation magnetic field intensity

+mprintf('electric field intensity is %f mV/m \n magnetic field intensity is %f uA/m',Erad*1e3,H*1e6)

diff --git a/1574/CH9/EX9.4/Result_of_Chapter_9_Ex9_4.JPG b/1574/CH9/EX9.4/Result_of_Chapter_9_Ex9_4.JPG
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