Networks Analysis | Ch.9 Sinusoidal Steady-State Analysis | AP9.02_9ed : Find the time-domain ex...

Topics:
Section 9.1 – Sinusoidal Source
Section 9.2 – Sinusoidal Response
Section 9.3 – The Phasor

Question:
Find the time-domain expression for each phasor below.
The time domain form is assumed to be similar to x(t) = cos(ω t + φ°)

a) V = 18.6 at angle -54° Volts
v(t) = _____ cos (ω t + _____°) V

b) I = (20 at angle 45°) - (50 at angle -30°) mA
i(t) = _____ cos (ωt + _____°) mA

c) V = (20 + j 80) - (30 at angle 15°) Volts
v(t) = _____ cos (ωt + _____°) V

Problem:
AP9.02_9ed