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//Efficiency at full load
clc;
clear;
V=400;
Inl=5; // No load current
Ra=0.5; // Armature Resistance
Rf=200; // Field Resistance
Ifl=40; // Full load current
Ish=V/Rf; // Field Current
Psc=(Ish^2)*Rf; // Field copper loss
Prs=(V*Inl)-Psc; // Stray losses assuming no armature losses
Ia=Ifl-Ish; // Armature Current
Pc=(Ia^2)*Ra;// Armature copper loss
Pi=Ifl*V; // Power input
Po=Pi-Psc-Prs-Pc;
eff=Po*100/Pi;
printf('The efficiency at full load = %g percent \n',eff)
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