Q6. (a) For two sinusoidal voltages v₁ = 30 sin(at) V and v₂ = 30 sin(wt + 0.25m) V, evaluate the following: (i) the sum of the two voltages in the form v₁ + ₂ = v sin(wt + ß) using a scaled phasor diagram of 2 cm per volt. This work may be done on the linear graph paper available towards the end of the examination paper and your plot may be detached and included in your answer book. (ii) the r.m.s. values of V₁, V2 and v₁ + V₂. (iii) the half-cycle mean value of v₁ + V₂. (b) Calculate the power dissipated when v₁ +V₂ is applied across a 50 f resistor.
Q6. (a) For two sinusoidal voltages v₁ = 30 sin(at) V and v₂ = 30 sin(wt + 0.25m) V, evaluate the following: (i) the sum of the two voltages in the form v₁ + ₂ = v sin(wt + ß) using a scaled phasor diagram of 2 cm per volt. This work may be done on the linear graph paper available towards the end of the examination paper and your plot may be detached and included in your answer book. (ii) the r.m.s. values of V₁, V2 and v₁ + V₂. (iii) the half-cycle mean value of v₁ + V₂. (b) Calculate the power dissipated when v₁ +V₂ is applied across a 50 f resistor.
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 2.3MCQ: If a phasor representation of a current is given by I=70.745A, it is equivalent to a. 100e/45 b....
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