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//Chapter 9 : Electromagnetic Theory
clear;
//Variable declaration
P=60 //Power
r=2 //distance from source
epsilon0=8.85*10**-12
C=3*10**2
//Calculations
E0=sqrt((P*2)/(4*%pi*r**2*C*epsilon0))/1000
//Result
mprintf("Amplitude of field E= %.0f V/m",E0)
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