A step up transformer supplies a current of 5 amp to the load at 200 V. The power factor of the load is 0.8 lagging. Given that R1 = 0.5 ohm, X1 = 1 ohm, R2 = 2 ohm, X2 = 4 ohm, k = 2, R0 = 450ohms...

A step up transformer supplies a current of 5 amp to the load at 200 V. The power factor of the
load is 0.8 lagging. Given that R1 = 0.5 ohm, X1 = 1 ohm, R2 = 2 ohm, X2 = 4 ohm, k = 2,
R0 = 450ohms and X0 = 250 ohms. Calculate the magnitude and phase of V1 and I1 with V2 as
reference phasor and calculate the input power factor.
 [Ans:V1 = 129.986.50 V, I1 = 10.56-37.880
 A and input pf = 0.71 lagging ]