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}

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