\({\overline V _a}\) = 1∠0°, \({\overline V _b}\) = 1∠120°, – McqOptions

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1.	\({\overline V _a}\) = 1∠0°, \({\overline V _b}\) = 1∠120°, \({\overline V _c}\) = 1∠240° constitute a balanced set of three phase voltages. The magnitude and angle of voltage \(\overline V_{bc}\) are
A.	1/√3, -90°
B.	√3, +90°
C.	√3, -30°
D.	1/√3, +30°
Answer» C. √3, -30°

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