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//Example 6_2
clc();
clear;
//To calculate the Electric field of a bulb
w=10 //units in W
i=(100*w)/(4*%pi*10^2) //Units in W/mts^2
c=3*10^8 //units in mts/sec
u=4*10^-7 //units in SI
n=1
E0=sqrt((i*2*c*u)/n) //units in V/mts
printf("The electric field of the bulb is E0=%.2f V/mts",E0)
//In text book answer is given E0=2.4 V/m but the correct answer is E0=13.82 V/m
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