GATE 2015 EE - SET 1 - Question 13

Solution :

KCL at node 1

\frac{0-V_{i}\angle 0}{X_{c}} + \frac{0-V_{0}\angle \delta }{R} =0

V_{0}\angle \delta = - X_{c}RV_{i}\angle 0

\delta = - 90^{0}

\rightarrow = -\frac{\pi }{2}