Problem 7.27 Use phasors to simplify each of the following expressions into a single term (*hint: see Problem 7.26): (a) v₁(t) = 12 cos (6t+30°) − 6 cos (6t – 45°) (b) v₂ (t) = -3 sin(1000t – 15°) - 6 sin(1000t +15°) + 12 cos (1000t - 60°) (c) v3 (t) = 2 cos (377t +60°) — 2 cos(377t – 60°) (d) V4 (t) = 10 cos 800t + 10 sin 800t

7.22 Determine the phasor counterparts of the following sinusoidal functions: (a) v₁ (t) = 4 cos(377t 30°) V (b) b v₂(t) = -2 sin(8л x −2 sin(8Ã × 104t + 18°) V (c) v3 (t) = 3 sin(1000t +53°) – 4 cos(1000t – 17°) V

The 80mH inductor can be modeled, at low frequencies, as a 0.08H ideal inductor in series with a 1802 resistor. Draw the equivalent ideal circuit in the frequency domain, for the real RL circuit depicted below. The alligator clips are connected to the function generator, which is generating a 5V peak-to-peak sine wave at 2KHZ. Don't forget to draw the 502 internal resistance of the function generator. The colour bands on the resistor are brown, black, red, gold. BNAR M X****

A 400 Hz sinusoidal voltage with a maximum amplitude of 120 V at t = 0 is applied across the terminals of an inductor. The maximum amplitude of the steady-state current in the inductor is 20 A Part A What is the frequency of the inductor current? Express your answer with the appropriate units. f= Part B Submit Request Answer μÀ 0₁ = Value Submit If the phase angle of the voltage is zero, what is the phase angle of the current? Express your answer with the appropriate units. μA Value Units Request Answer ? Units ?