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v1=4160;
v2=230;
r=4;
disp("Part a");
i2=v2/r;
i1=v2*i2/i1;
disp("the primary current (in A) is"); disp(i1);
disp("Part b");
pout=v2^2/r;
eff=0.98;
pin=pout/eff;
i1=pin/v1;
disp("the primary current (in A) with 98% efficiency is"); disp(i1);
disp("Part c");
loss=pin-pout;
disp("The losses (in W) is"); disp(loss);
disp("Part d");
p=v2*i2;
disp("The rating of the transformer (in kVA) is"); disp(p/1000);
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