Q1
The potential difference across a circuit is given by the complex number
If V= 40 + j35,
and the current is given by the complex number
I = 6 + j3
a) Sketch appropriate phasors on an argand diagram,
b) Find the phase difference (angle Φ ) between the phasors for voltage V and current I
c) Find power (watt) = V × I × cos (Φ)
Q2
i = 15 sin (100Πt + 0.6)
What is the amplitude, period, frequency.
Whats the initial phase angle when t = 0 expressed in both radians and degrees.
The value of e when t = 2.5 sec the Time in miliseconds when the current first reaches its maximum value.