r=200;
x_l=400;
v=40;
disp("Part a");
ir=v/r;
il=v/x_l;
i=ir+il;
disp("the total circuit current (in A) is");disp(i);
disp("Part b");
z=v/i;
disp("the impedance (in Ω) of the circuit is");disp(z);
disp("Part c");
deg=-atan(il/ir)*180/%pi;
disp("the phase angle(in deg) between circuit current and applied voltage is");disp(deg);