2. Express the following functions as a cosine:a. 10 sin(wt +30°)b. -40 sin(wt - 70°)c. 25 sin(wt 15°)d. 5 sin(wt +230°)-3. For the two signals Va(t) and Va(t) below, draw the phasor diagram for both signals, thendetermine which one leads and by how much:Va(t) = 12 cos(4t-80°) VoltsVb (t) = 10 sin(4t + 20°) Voltscomplex numbers, express the results in polar form.4. Evaluate the followinga. 3 + 4jb. -11jc. -12 + 15jd. 5 - 4j5. Find the phasors corresponding to each of the following signals:a. v(t) = 12 cos (4t- 200°) Voltsb. i(t) = -50 sin(100t +30°) Ampsc. i(t) = -45 cos(6t+ 40°) Ampsd. v(t) = 8 sin (200t - 170°) Volts

Answered: Image /qna-images/answer/b0941501-f422-45da-a43d-18a1c6d24fe9.jpg

2. Express the following functions as a cosine: a. 10 sin(wt +30°) b. -40 sin(wt - 70°) c. 25 sin(wt -15°) d. 5 sin(wt +230°) 3. For the two signals Va(t) and Va(t) below, draw the phasor diagram for both signals, determine which one leads and by how much: Va(t) = 12 cos(4t-80°) Volts Vb (t) = 10 sin(4t + 20°) Volts 4. Evaluate the following complex numbers, express the results in polar form. a. 3 +4j b. -1- 1j c. -12 + 15j d. 5 - 4j 5. Find the phasors corresponding to each of the following signals: a. v(t) = 12 cos (4t- 200°) Volts b. i(t) = -50 sin(100t + 30°) Amps c. i(t) = -45 cos(6t + 40°) Amps d. v(t) = 8 sin (200t 170°) Volts

2. Express the following functions as a cosine: a. 10 sin(wt +30°) b. -40 sin(wt - 70°) c. 25 sin(wt -15°) d. 5 sin(wt +230°) 3. For the two signals Va(t) and Va(t) below, draw the phasor diagram for both signals, determine which one leads and by how much: Va(t) = 12 cos(4t-80°) Volts Vb (t) = 10 sin(4t + 20°) Volts 4. Evaluate the following complex numbers, express the results in polar form. a. 3 +4j b. -1- 1j c. -12 + 15j d. 5 - 4j 5. Find the phasors corresponding to each of the following signals: a. v(t) = 12 cos (4t- 200°) Volts b. i(t) = -50 sin(100t + 30°) Amps c. i(t) = -45 cos(6t + 40°) Amps d. v(t) = 8 sin (200t 170°) Volts

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.7P: Let a 100V sinusoidal source be connected to a series combination of a 3 resistor, an 8 inductor,...

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