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disp("Part a");
v=120;
p=60;
r=18;
i=v/r;
disp("the initial inrush of current (in A) is"); disp(i);
disp("Part b");
i1=p/v;
disp("the steady operating current (in A) is"); disp(i1);
disp("Part c");
r1=v/i1;
disp("the hot resistance (in Ω) of the lamp is"); disp(r1);
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