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//CHAPTER 8- DIRECT CURRENT MACHINES
//Example 29
disp("CHAPTER 8");
disp("EXAMPLE 29");
//DC series motor
//VARIABLE INITIALIZATION
r_a=1; //in Ohms
N1=800; //in rpm
v_t=200; //in Volts
I_a=15; //in Amperes
r_s=5; //series resistance in Ohms
//SOLUTION
E_b1=v_t-(I_a*r_a); // back emf
E_b2=v_t-I_a*(r_a+r_s);
N2=(E_b2/E_b1)*N1; //RPM
N2=round(N2); //to round off the value
disp(sprintf("The speed attained after connecting the series resistance is %d rpm",N2));
//END
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