Let us assume that a certain quantity I(t) changes over time as I(t) Io cos(wt)

Subject:PhysicsPrice:2.85 Bought3

Share With

Let us assume that a certain quantity I(t) changes over time as I(t) Io cos(wt). A phasor is a vector whose length represents the amplitude lo (see the diagram (Figure 1) This vector is assumed to rotate counterclockwise with angular frequency w, that way, the horizontal component of the vector represents the actual value I (t) at any given moment. In this problem, you will answer some basic questions about phasors and prepare to use them in the analysis of various AC circuits. Figure 2 of 4 asors shown in the gram (Figure 2) Assume that all four phasors have the same angular frequency In parts A-C consider the four w Part A At the moment t depicted in the diagram, which of the following statements is true? I2 leads H by mr. I1 leads 12 by I2 leads H by 11 leads 12 by Submit My Answers Give Up Part B At the moment shown in the diagram, which of the following statements is true? I2 lags B by I3 lags 12 by 2w. Ia lags by O 13 lags 12 by