clear
//Given
p=5*10**-8
m=9*10**9
r=0.15

//Calculation
E=m*2*p/r**3
E1=m*p/r**3

printf("\n (i) Electric field along AB is  %0.2f  *10**5 N/C",E*10**-5)
printf("\n (ii) Electric field along BA is  %0.2f  *10**5 N/C",E1*10**-5)