Question:

What's the phase relationship between voltage and current if.....?

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v = 15sin (0t + 30 deg) and

i = 20 sin (0t - 10 deg)???

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  1. The relationship between the two is referred to as the power factor (PF) and is the cosine of the angle.

    The current is lagging the voltage by 40°.

    cos(40°) = 0.77 lagging

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