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//calculating the speed and percentage increase in flux
//Chapter 2
//Example 2.8
//page 97
clear;
clc;
disp("example 2.8")
disp("assuming constant flux")
E1=220; //induced emf at N1 speed in volts
N1=750; // speed
K1=(E1/N1)
E2=250; //induced emf at speed N2
N2=E2/K1
printf("speed at induced emf of 250V =%d rpm",N2)
disp("when induced emf is 250V and speed 700 rpm")
E3=250; //induced emf at N3 speed
N3=700; //speed
ratio=(E3*N1)/(E1*N3)
Pi=(ratio-1)*100
printf("percentage increase in flux is %f percent",Pi)
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