1.

Two voltages are v1= 100 sin (ωt + 15°) and v2 = 60 cosωt, then

A. v2 is leading v1 by 75°
B. v2 is lagging v1 by 15°
C. 4∠64°
D. 4∠8°
Answer» D. 4‚à†8¬∞


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