//caption:Find magnitude and phase angle of Z4 arm //Ex4.6 clc clear close Z1=200//impedance of first arm(in ohm) Za=30//phase angle of first arm(in degree) Z2=250//impedance of second arm(in ohm) Zb=-40//phase angle of second arm(in degree) Z3=150//impedane of third arm(in ohm) Zc=0//phase angle of third arm(in degree) Z4=(Z2*Z3)/Z1 disp(Z4,'magnitude of Z4 arm(in ohm)=') Zd=Zb+Zc-Za disp(Zd,'phase angle of Z4 arm(in degree)=')