Q$6$

$V(t)=V_{m}sin(t+\frac{}{9})$

$I(t)=I_{m}sin(t-\frac{}{4})$

Supply frequency is $60$ Hz $.$

a$)$ Calculate the angular speed $.$ What is the unit here?

b$)$ Draw these waveforms against time.

c$)$ What is the period of these waveforms?

d$)$ Taking voltage as reference is current leading or lagging? Explain how you decide.