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//calculate teh efficiency at loads
KVA=20
Il=350
Cl=400
x=1
pf=0.8//at full load
pf1=0.4 //at half load
x1=0.5
op=KVA*1000*x
op1=KVA*1000*x1*pf1
Tl=Il+(Cl*x*x)
Tl1=Il+(Cl*x1*x1)
ip=op+Tl
ip1=op1+Tl1
%n=op/ip*100
%n1=op1/ip1*100
disp('efficiency at half load n = '+string(%n1)+' ' , 'efficiency at full load n1 = '+string(%n)+' ' )
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