3 9.5 Consider the sinusoidal voltage v(t) = 170 cos(120πt - 60°) V. a) What is the maximum amplitude of the voltage? b) What is the frequency in hertz? c) What is the frequency in radians per second? d) What is the phase angle in radians? e) What is the phase angle in degrees? f) What is the period in milliseconds? g) What is the first time after t = 0 that v = 170 V? h) The sinusoidal function is shifted 125/18 ms to the right along the time axis. What is the expres- sion for v(t)? i) What is the minimum number of milliseconds that the function must be shifted to the left if the expression for v(t) is 170 sin 120πt V?

3 9.5 Consider the sinusoidal voltage v(t) = 170 cos(120πt - 60°) V. a) What is the maximum amplitude of the voltage? b) What is the frequency in hertz? c) What is the frequency in radians per second? d) What is the phase angle in radians? e) What is the phase angle in degrees? f) What is the period in milliseconds? g) What is the first time after t = 0 that v = 170 V? h) The sinusoidal function is shifted 125/18 ms to the right along the time axis. What is the expres- sion for v(t)? i) What is the minimum number of milliseconds that the function must be shifted to the left if the expression for v(t) is 170 sin 120πt V?

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 2.27P: An industrial load consisting of a bank of induction motors consumes 50 kW at a power factor of 0.8...

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